21304452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3691}}^1$

素因数の和:3748

約数の個数: 48

約数和(自身を含む): 54996032

約数和(自身を除く): 33691580

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 111, 148, 156, 222, 444, 481, 962, 1443, 1924, 2886, 3691, 5772, 7382, 11073, 14764, 22146, 44292, 47983, 95966, 136567, 143949, 191932, 273134, 287898, 409701, 546268, 575796, 819402, 1638804, 1775371, 3550742, 5326113, 7101484, 10652226, 21304452]

約数ペア:

[(1, 21304452), (2, 10652226), (3, 7101484), (4, 5326113), (6, 3550742), (12, 1775371), (13, 1638804), (26, 819402), (37, 575796), (39, 546268), (52, 409701), (74, 287898), (78, 273134), (111, 191932), (148, 143949), (156, 136567), (222, 95966), (444, 47983), (481, 44292), (962, 22146), (1443, 14764), (1924, 11073), (2886, 7382), (3691, 5772)]