18140535

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 38591280

約数和(自身を除く): 20450745

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 49, 57, 63, 95, 105, 133, 147, 171, 245, 285, 315, 399, 433, 441, 665, 735, 855, 931, 1197, 1299, 1995, 2165, 2205, 2793, 3031, 3897, 4655, 5985, 6495, 8227, 8379, 9093, 13965, 15155, 19485, 21217, 24681, 27279, 41135, 41895, 45465, 57589, 63651, 74043, 106085, 123405, 136395, 172767, 190953, 287945, 318255, 370215, 403123, 518301, 863835, 954765, 1209369, 2015615, 2591505, 3628107, 6046845, 18140535]

約数ペア:

[(1, 18140535), (3, 6046845), (5, 3628107), (7, 2591505), (9, 2015615), (15, 1209369), (19, 954765), (21, 863835), (35, 518301), (45, 403123), (49, 370215), (57, 318255), (63, 287945), (95, 190953), (105, 172767), (133, 136395), (147, 123405), (171, 106085), (245, 74043), (285, 63651), (315, 57589), (399, 45465), (433, 41895), (441, 41135), (665, 27279), (735, 24681), (855, 21217), (931, 19485), (1197, 15155), (1299, 13965), (1995, 9093), (2165, 8379), (2205, 8227), (2793, 6495), (3031, 5985), (3897, 4655)]