15393021

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 24944640

約数和(自身を除く): 9551619

約数列:

[1, 3, 7, 19, 21, 57, 133, 173, 223, 399, 519, 669, 1211, 1561, 3287, 3633, 4237, 4683, 9861, 12711, 23009, 29659, 38579, 69027, 88977, 115737, 270053, 733001, 810159, 2199003, 5131007, 15393021]

約数ペア:

[(1, 15393021), (3, 5131007), (7, 2199003), (19, 810159), (21, 733001), (57, 270053), (133, 115737), (173, 88977), (223, 69027), (399, 38579), (519, 29659), (669, 23009), (1211, 12711), (1561, 9861), (3287, 4683), (3633, 4237)]