21988111

素因数分解:

${\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 23869440

約数和(自身を除く): 1881329

約数列:

[1, 19, 73, 83, 191, 1387, 1577, 3629, 6059, 13943, 15853, 115121, 264917, 301207, 1157269, 21988111]

約数ペア:

[(1, 21988111), (19, 1157269), (73, 301207), (83, 264917), (191, 115121), (1387, 15853), (1577, 13943), (3629, 6059)]