18935265

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 32034816

約数和(自身を除く): 13099551

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 947, 1333, 2841, 3999, 4735, 6665, 14205, 19995, 29357, 40721, 88071, 122163, 146785, 203605, 440355, 610815, 1262351, 3787053, 6311755, 18935265]

約数ペア:

[(1, 18935265), (3, 6311755), (5, 3787053), (15, 1262351), (31, 610815), (43, 440355), (93, 203605), (129, 146785), (155, 122163), (215, 88071), (465, 40721), (645, 29357), (947, 19995), (1333, 14205), (2841, 6665), (3999, 4735)]