21505306

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{10369}}^1$

素因数の和:10449

約数の個数: 16

約数和(自身を含む): 34718760

約数和(自身を除く): 13213454

約数列:

[1, 2, 17, 34, 61, 122, 1037, 2074, 10369, 20738, 176273, 352546, 632509, 1265018, 10752653, 21505306]

約数ペア:

[(1, 21505306), (2, 10752653), (17, 1265018), (34, 632509), (61, 352546), (122, 176273), (1037, 20738), (2074, 10369)]