20889464

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{571}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 20809336

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 269, 538, 571, 1076, 1142, 2152, 2284, 4568, 4573, 9146, 9707, 18292, 19414, 36584, 38828, 77656, 153599, 307198, 614396, 1228792, 2611183, 5222366, 10444732, 20889464]

約数ペア:

[(1, 20889464), (2, 10444732), (4, 5222366), (8, 2611183), (17, 1228792), (34, 614396), (68, 307198), (136, 153599), (269, 77656), (538, 38828), (571, 36584), (1076, 19414), (1142, 18292), (2152, 9707), (2284, 9146), (4568, 4573)]