21190832

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101879}}^1$

素因数の和:101900

約数の個数: 20

約数和(自身を含む): 44215920

約数和(自身を除く): 23025088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101879, 203758, 407516, 815032, 1324427, 1630064, 2648854, 5297708, 10595416, 21190832]

約数ペア:

[(1, 21190832), (2, 10595416), (4, 5297708), (8, 2648854), (13, 1630064), (16, 1324427), (26, 815032), (52, 407516), (104, 203758), (208, 101879)]