19255761

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 33755904

約数和(自身を除く): 14500143

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 97, 137, 161, 207, 291, 411, 483, 679, 873, 959, 1233, 1449, 2037, 2231, 2877, 3151, 6111, 6693, 8631, 9453, 13289, 15617, 20079, 22057, 28359, 39867, 46851, 66171, 93023, 119601, 140553, 198513, 279069, 305647, 837207, 916941, 2139529, 2750823, 6418587, 19255761]

約数ペア:

[(1, 19255761), (3, 6418587), (7, 2750823), (9, 2139529), (21, 916941), (23, 837207), (63, 305647), (69, 279069), (97, 198513), (137, 140553), (161, 119601), (207, 93023), (291, 66171), (411, 46851), (483, 39867), (679, 28359), (873, 22057), (959, 20079), (1233, 15617), (1449, 13289), (2037, 9453), (2231, 8631), (2877, 6693), (3151, 6111)]