21550288

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79229}}^1$

素因数の和:79254

約数の個数: 20

約数和(自身を含む): 44210340

約数和(自身を除く): 22660052

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79229, 158458, 316916, 633832, 1267664, 1346893, 2693786, 5387572, 10775144, 21550288]

約数ペア:

[(1, 21550288), (2, 10775144), (4, 5387572), (8, 2693786), (16, 1346893), (17, 1267664), (34, 633832), (68, 316916), (136, 158458), (272, 79229)]