18870885

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{569}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 36279360

約数和(自身を除く): 17408475

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 67, 99, 165, 201, 335, 495, 569, 603, 737, 1005, 1707, 2211, 2845, 3015, 3685, 5121, 6259, 6633, 8535, 11055, 18777, 25605, 31295, 33165, 38123, 56331, 93885, 114369, 190615, 281655, 343107, 419353, 571845, 1258059, 1715535, 2096765, 3774177, 6290295, 18870885]

約数ペア:

[(1, 18870885), (3, 6290295), (5, 3774177), (9, 2096765), (11, 1715535), (15, 1258059), (33, 571845), (45, 419353), (55, 343107), (67, 281655), (99, 190615), (165, 114369), (201, 93885), (335, 56331), (495, 38123), (569, 33165), (603, 31295), (737, 25605), (1005, 18777), (1707, 11055), (2211, 8535), (2845, 6633), (3015, 6259), (3685, 5121)]