66863312

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{245821}}^1$

素因数の和:245846

約数の個数: 20

約数和(自身を含む): 137168676

約数和(自身を除く): 70305364

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 245821, 491642, 983284, 1966568, 3933136, 4178957, 8357914, 16715828, 33431656, 66863312]

約数ペア:

[(1, 66863312), (2, 33431656), (4, 16715828), (8, 8357914), (16, 4178957), (17, 3933136), (34, 1966568), (68, 983284), (136, 491642), (272, 245821)]