19640816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{94427}}^1$

素因数の和:94448

約数の個数: 20

約数和(自身を含む): 40981752

約数和(自身を除く): 21340936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 94427, 188854, 377708, 755416, 1227551, 1510832, 2455102, 4910204, 9820408, 19640816]

約数ペア:

[(1, 19640816), (2, 9820408), (4, 4910204), (8, 2455102), (13, 1510832), (16, 1227551), (26, 755416), (52, 377708), (104, 188854), (208, 94427)]