19549964

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 40943616

約数和(自身を除く): 21393652

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 101, 124, 202, 217, 223, 404, 434, 446, 707, 868, 892, 1414, 1561, 2828, 3122, 3131, 6244, 6262, 6913, 12524, 13826, 21917, 22523, 27652, 43834, 45046, 48391, 87668, 90092, 96782, 157661, 193564, 315322, 630644, 698213, 1396426, 2792852, 4887491, 9774982, 19549964]

約数ペア:

[(1, 19549964), (2, 9774982), (4, 4887491), (7, 2792852), (14, 1396426), (28, 698213), (31, 630644), (62, 315322), (101, 193564), (124, 157661), (202, 96782), (217, 90092), (223, 87668), (404, 48391), (434, 45046), (446, 43834), (707, 27652), (868, 22523), (892, 21917), (1414, 13826), (1561, 12524), (2828, 6913), (3122, 6262), (3131, 6244)]