21720462

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:904

約数の個数: 32

約数和(自身を含む): 44769024

約数和(自身を除く): 23048562

約数列:

[1, 2, 3, 6, 67, 71, 134, 142, 201, 213, 402, 426, 761, 1522, 2283, 4566, 4757, 9514, 14271, 28542, 50987, 54031, 101974, 108062, 152961, 162093, 305922, 324186, 3620077, 7240154, 10860231, 21720462]

約数ペア:

[(1, 21720462), (2, 10860231), (3, 7240154), (6, 3620077), (67, 324186), (71, 305922), (134, 162093), (142, 152961), (201, 108062), (213, 101974), (402, 54031), (426, 50987), (761, 28542), (1522, 14271), (2283, 9514), (4566, 4757)]