21161296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101737}}^1$

素因数の和:101758

約数の個数: 20

約数和(自身を含む): 44154292

約数和(自身を除く): 22992996

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101737, 203474, 406948, 813896, 1322581, 1627792, 2645162, 5290324, 10580648, 21161296]

約数ペア:

[(1, 21161296), (2, 10580648), (4, 5290324), (8, 2645162), (13, 1627792), (16, 1322581), (26, 813896), (52, 406948), (104, 203474), (208, 101737)]