18972954

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:64

約数の個数: 168

約数和(自身を含む): 57605472

約数和(自身を除く): 38632518

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 27, 33, 39, 42, 54, 63, 66, 77, 78, 81, 91, 99, 117, 126, 143, 154, 162, 169, 182, 189, 198, 231, 234, 243, 273, 286, 297, 338, 351, 378, 429, 462, 486, 507, 546, 567, 594, 693, 702, 729, 819, 858, 891, 1001, 1014, 1053, 1134, 1183, 1287, 1386, 1458, 1521, 1638, 1701, 1782, 1859, 2002, 2079, 2106, 2366, 2457, 2574, 2673, 3003, 3042, 3159, 3402, 3549, 3718, 3861, 4158, 4563, 4914, 5103, 5346, 5577, 6006, 6237, 6318, 7098, 7371, 7722, 8019, 9009, 9126, 9477, 10206, 10647, 11154, 11583, 12474, 13013, 13689, 14742, 16038, 16731, 18018, 18711, 18954, 21294, 22113, 23166, 26026, 27027, 27378, 31941, 33462, 34749, 37422, 39039, 41067, 44226, 50193, 54054, 56133, 63882, 66339, 69498, 78078, 81081, 82134, 95823, 100386, 104247, 112266, 117117, 123201, 132678, 150579, 162162, 191646, 208494, 234234, 243243, 246402, 287469, 301158, 351351, 451737, 486486, 574938, 702702, 729729, 862407, 903474, 1054053, 1355211, 1459458, 1724814, 2108106, 2710422, 3162159, 6324318, 9486477, 18972954]

約数ペア:

[(1, 18972954), (2, 9486477), (3, 6324318), (6, 3162159), (7, 2710422), (9, 2108106), (11, 1724814), (13, 1459458), (14, 1355211), (18, 1054053), (21, 903474), (22, 862407), (26, 729729), (27, 702702), (33, 574938), (39, 486486), (42, 451737), (54, 351351), (63, 301158), (66, 287469), (77, 246402), (78, 243243), (81, 234234), (91, 208494), (99, 191646), (117, 162162), (126, 150579), (143, 132678), (154, 123201), (162, 117117), (169, 112266), (182, 104247), (189, 100386), (198, 95823), (231, 82134), (234, 81081), (243, 78078), (273, 69498), (286, 66339), (297, 63882), (338, 56133), (351, 54054), (378, 50193), (429, 44226), (462, 41067), (486, 39039), (507, 37422), (546, 34749), (567, 33462), (594, 31941), (693, 27378), (702, 27027), (729, 26026), (819, 23166), (858, 22113), (891, 21294), (1001, 18954), (1014, 18711), (1053, 18018), (1134, 16731), (1183, 16038), (1287, 14742), (1386, 13689), (1458, 13013), (1521, 12474), (1638, 11583), (1701, 11154), (1782, 10647), (1859, 10206), (2002, 9477), (2079, 9126), (2106, 9009), (2366, 8019), (2457, 7722), (2574, 7371), (2673, 7098), (3003, 6318), (3042, 6237), (3159, 6006), (3402, 5577), (3549, 5346), (3718, 5103), (3861, 4914), (4158, 4563)]