21115123

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 1867277

約数列:

[1, 31, 37, 41, 449, 1147, 1271, 1517, 13919, 16613, 18409, 47027, 515003, 570679, 681133, 21115123]

約数ペア:

[(1, 21115123), (31, 681133), (37, 570679), (41, 515003), (449, 47027), (1147, 18409), (1271, 16613), (1517, 13919)]