15515913

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1051}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 25584640

約数和(自身を除く): 10068727

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 1051, 2109, 3153, 4921, 7357, 14763, 19969, 22071, 38887, 59907, 116661, 139783, 272209, 419349, 738853, 816627, 2216559, 5171971, 15515913]

約数ペア:

[(1, 15515913), (3, 5171971), (7, 2216559), (19, 816627), (21, 738853), (37, 419349), (57, 272209), (111, 139783), (133, 116661), (259, 59907), (399, 38887), (703, 22071), (777, 19969), (1051, 14763), (2109, 7357), (3153, 4921)]