18191745

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 37470888

約数和(自身を除く): 19279143

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 121, 143, 165, 195, 257, 363, 429, 495, 585, 605, 715, 771, 1089, 1285, 1287, 1573, 1815, 2145, 2313, 2827, 3341, 3855, 4719, 5445, 6435, 7865, 8481, 10023, 11565, 14135, 14157, 16705, 23595, 25443, 30069, 31097, 36751, 42405, 50115, 70785, 93291, 110253, 127215, 150345, 155485, 183755, 279873, 330759, 404261, 466455, 551265, 1212783, 1399365, 1653795, 2021305, 3638349, 6063915, 18191745]

約数ペア:

[(1, 18191745), (3, 6063915), (5, 3638349), (9, 2021305), (11, 1653795), (13, 1399365), (15, 1212783), (33, 551265), (39, 466455), (45, 404261), (55, 330759), (65, 279873), (99, 183755), (117, 155485), (121, 150345), (143, 127215), (165, 110253), (195, 93291), (257, 70785), (363, 50115), (429, 42405), (495, 36751), (585, 31097), (605, 30069), (715, 25443), (771, 23595), (1089, 16705), (1285, 14157), (1287, 14135), (1573, 11565), (1815, 10023), (2145, 8481), (2313, 7865), (2827, 6435), (3341, 5445), (3855, 4719)]