20784868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9749}}^1$

素因数の和:9807

約数の個数: 24

約数和(自身を含む): 40131000

約数和(自身を除く): 19346132

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9749, 19498, 38996, 126737, 253474, 399709, 506948, 799418, 1598836, 5196217, 10392434, 20784868]

約数ペア:

[(1, 20784868), (2, 10392434), (4, 5196217), (13, 1598836), (26, 799418), (41, 506948), (52, 399709), (82, 253474), (164, 126737), (533, 38996), (1066, 19498), (2132, 9749)]