20553858

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 54835200

約数和(自身を除く): 34281342

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 23, 26, 27, 38, 39, 46, 54, 57, 67, 69, 78, 114, 117, 134, 138, 171, 201, 207, 234, 247, 299, 342, 351, 402, 414, 437, 494, 513, 598, 603, 621, 702, 741, 871, 874, 897, 1026, 1206, 1242, 1273, 1311, 1482, 1541, 1742, 1794, 1809, 2223, 2546, 2613, 2622, 2691, 3082, 3618, 3819, 3933, 4446, 4623, 5226, 5382, 5681, 6669, 7638, 7839, 7866, 8073, 9246, 11362, 11457, 11799, 13338, 13869, 15678, 16146, 16549, 17043, 20033, 22914, 23517, 23598, 27738, 29279, 33098, 34086, 34371, 40066, 41607, 47034, 49647, 51129, 58558, 60099, 68742, 83214, 87837, 99294, 102258, 120198, 148941, 153387, 175674, 180297, 263511, 297882, 306774, 360594, 380627, 446823, 527022, 540891, 761254, 790533, 893646, 1081782, 1141881, 1581066, 2283762, 3425643, 6851286, 10276929, 20553858]

約数ペア:

[(1, 20553858), (2, 10276929), (3, 6851286), (6, 3425643), (9, 2283762), (13, 1581066), (18, 1141881), (19, 1081782), (23, 893646), (26, 790533), (27, 761254), (38, 540891), (39, 527022), (46, 446823), (54, 380627), (57, 360594), (67, 306774), (69, 297882), (78, 263511), (114, 180297), (117, 175674), (134, 153387), (138, 148941), (171, 120198), (201, 102258), (207, 99294), (234, 87837), (247, 83214), (299, 68742), (342, 60099), (351, 58558), (402, 51129), (414, 49647), (437, 47034), (494, 41607), (513, 40066), (598, 34371), (603, 34086), (621, 33098), (702, 29279), (741, 27738), (871, 23598), (874, 23517), (897, 22914), (1026, 20033), (1206, 17043), (1242, 16549), (1273, 16146), (1311, 15678), (1482, 13869), (1541, 13338), (1742, 11799), (1794, 11457), (1809, 11362), (2223, 9246), (2546, 8073), (2613, 7866), (2622, 7839), (2691, 7638), (3082, 6669), (3618, 5681), (3819, 5382), (3933, 5226), (4446, 4623)]