13720377

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 21734784

約数和(自身を除く): 8014407

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 407, 561, 629, 661, 1221, 1887, 1983, 6919, 7271, 11237, 20757, 21813, 24457, 33711, 73371, 123607, 269027, 370821, 415769, 807081, 1247307, 4573459, 13720377]

約数ペア:

[(1, 13720377), (3, 4573459), (11, 1247307), (17, 807081), (33, 415769), (37, 370821), (51, 269027), (111, 123607), (187, 73371), (407, 33711), (561, 24457), (629, 21813), (661, 20757), (1221, 11237), (1887, 7271), (1983, 6919)]