21212974

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{7517}}^1$

素因数の和:7619

約数の個数: 16

約数和(自身を含む): 34101648

約数和(自身を除く): 12888674

約数列:

[1, 2, 17, 34, 83, 166, 1411, 2822, 7517, 15034, 127789, 255578, 623911, 1247822, 10606487, 21212974]

約数ペア:

[(1, 21212974), (2, 10606487), (17, 1247822), (34, 623911), (83, 255578), (166, 127789), (1411, 15034), (2822, 7517)]