19924775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{607}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 26914944

約数和(自身を除く): 6990169

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 607, 1313, 2525, 3035, 6565, 7891, 15175, 32825, 39455, 61307, 197275, 306535, 796991, 1532675, 3984955, 19924775]

約数ペア:

[(1, 19924775), (5, 3984955), (13, 1532675), (25, 796991), (65, 306535), (101, 197275), (325, 61307), (505, 39455), (607, 32825), (1313, 15175), (2525, 7891), (3035, 6565)]