21386238

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{209669}}^1$

素因数の和:209691

約数の個数: 16

約数和(自身を含む): 45288720

約数和(自身を除く): 23902482

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 209669, 419338, 629007, 1258014, 3564373, 7128746, 10693119, 21386238]

約数ペア:

[(1, 21386238), (2, 10693119), (3, 7128746), (6, 3564373), (17, 1258014), (34, 629007), (51, 419338), (102, 209669)]