21221728

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{60289}}^1$

素因数の和:60310

約数の個数: 24

約数和(自身を含む): 45579240

約数和(自身を除く): 24357512

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 352, 60289, 120578, 241156, 482312, 663179, 964624, 1326358, 1929248, 2652716, 5305432, 10610864, 21221728]

約数ペア:

[(1, 21221728), (2, 10610864), (4, 5305432), (8, 2652716), (11, 1929248), (16, 1326358), (22, 964624), (32, 663179), (44, 482312), (88, 241156), (176, 120578), (352, 60289)]