19828578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 49932288

約数和(自身を除く): 30103710

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 167, 231, 257, 334, 462, 501, 514, 771, 1002, 1169, 1542, 1799, 1837, 2338, 2827, 3507, 3598, 3674, 5397, 5511, 5654, 7014, 8481, 10794, 11022, 12859, 16962, 19789, 25718, 38577, 39578, 42919, 59367, 77154, 85838, 118734, 128757, 257514, 300433, 472109, 600866, 901299, 944218, 1416327, 1802598, 2832654, 3304763, 6609526, 9914289, 19828578]

約数ペア:

[(1, 19828578), (2, 9914289), (3, 6609526), (6, 3304763), (7, 2832654), (11, 1802598), (14, 1416327), (21, 944218), (22, 901299), (33, 600866), (42, 472109), (66, 300433), (77, 257514), (154, 128757), (167, 118734), (231, 85838), (257, 77154), (334, 59367), (462, 42919), (501, 39578), (514, 38577), (771, 25718), (1002, 19789), (1169, 16962), (1542, 12859), (1799, 11022), (1837, 10794), (2338, 8481), (2827, 7014), (3507, 5654), (3598, 5511), (3674, 5397)]