21337789

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 24186240

約数和(自身を除く): 2848451

約数列:

[1, 11, 37, 103, 407, 509, 1133, 3811, 5599, 18833, 41921, 52427, 207163, 576697, 1939799, 21337789]

約数ペア:

[(1, 21337789), (11, 1939799), (37, 576697), (103, 207163), (407, 52427), (509, 41921), (1133, 18833), (3811, 5599)]