21085218

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{461}}^1$

素因数の和:501

約数の個数: 96

約数和(自身を含む): 58988160

約数和(自身を除く): 37902942

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 77, 99, 121, 126, 154, 189, 198, 231, 242, 297, 363, 378, 461, 462, 594, 693, 726, 847, 922, 1089, 1383, 1386, 1694, 2079, 2178, 2541, 2766, 3227, 3267, 4149, 4158, 5071, 5082, 6454, 6534, 7623, 8298, 9681, 10142, 12447, 15213, 15246, 19362, 22869, 24894, 29043, 30426, 35497, 45639, 45738, 55781, 58086, 70994, 87129, 91278, 106491, 111562, 136917, 167343, 174258, 212982, 273834, 319473, 334686, 390467, 502029, 638946, 780934, 958419, 1004058, 1171401, 1506087, 1916838, 2342802, 3012174, 3514203, 7028406, 10542609, 21085218]

約数ペア:

[(1, 21085218), (2, 10542609), (3, 7028406), (6, 3514203), (7, 3012174), (9, 2342802), (11, 1916838), (14, 1506087), (18, 1171401), (21, 1004058), (22, 958419), (27, 780934), (33, 638946), (42, 502029), (54, 390467), (63, 334686), (66, 319473), (77, 273834), (99, 212982), (121, 174258), (126, 167343), (154, 136917), (189, 111562), (198, 106491), (231, 91278), (242, 87129), (297, 70994), (363, 58086), (378, 55781), (461, 45738), (462, 45639), (594, 35497), (693, 30426), (726, 29043), (847, 24894), (922, 22869), (1089, 19362), (1383, 15246), (1386, 15213), (1694, 12447), (2079, 10142), (2178, 9681), (2541, 8298), (2766, 7623), (3227, 6534), (3267, 6454), (4149, 5082), (4158, 5071)]