21139524

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{563}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 61588800

約数和(自身を除く): 40449276

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 149, 252, 298, 447, 563, 596, 894, 1043, 1126, 1341, 1689, 1788, 2086, 2252, 2682, 3129, 3378, 3941, 4172, 5067, 5364, 6258, 6756, 7882, 9387, 10134, 11823, 12516, 15764, 18774, 20268, 23646, 35469, 37548, 47292, 70938, 83887, 141876, 167774, 251661, 335548, 503322, 587209, 754983, 1006644, 1174418, 1509966, 1761627, 2348836, 3019932, 3523254, 5284881, 7046508, 10569762, 21139524]

約数ペア:

[(1, 21139524), (2, 10569762), (3, 7046508), (4, 5284881), (6, 3523254), (7, 3019932), (9, 2348836), (12, 1761627), (14, 1509966), (18, 1174418), (21, 1006644), (28, 754983), (36, 587209), (42, 503322), (63, 335548), (84, 251661), (126, 167774), (149, 141876), (252, 83887), (298, 70938), (447, 47292), (563, 37548), (596, 35469), (894, 23646), (1043, 20268), (1126, 18774), (1341, 15764), (1689, 12516), (1788, 11823), (2086, 10134), (2252, 9387), (2682, 7882), (3129, 6756), (3378, 6258), (3941, 5364), (4172, 5067)]