19989476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8179}}^1$

素因数の和:8243

約数の個数: 24

約数和(自身を含む): 38478720

約数和(自身を除く): 18489244

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8179, 16358, 32716, 106327, 212654, 384413, 425308, 768826, 1537652, 4997369, 9994738, 19989476]

約数ペア:

[(1, 19989476), (2, 9994738), (4, 4997369), (13, 1537652), (26, 768826), (47, 425308), (52, 384413), (94, 212654), (188, 106327), (611, 32716), (1222, 16358), (2444, 8179)]