18485145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 38830080

約数和(自身を除く): 20344935

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 93, 105, 135, 155, 189, 217, 279, 315, 465, 631, 651, 837, 945, 1085, 1395, 1893, 1953, 3155, 3255, 4185, 4417, 5679, 5859, 9465, 9765, 13251, 17037, 19561, 22085, 28395, 29295, 39753, 58683, 66255, 85185, 97805, 119259, 136927, 176049, 198765, 293415, 410781, 528147, 596295, 684635, 880245, 1232343, 2053905, 2640735, 3697029, 6161715, 18485145]

約数ペア:

[(1, 18485145), (3, 6161715), (5, 3697029), (7, 2640735), (9, 2053905), (15, 1232343), (21, 880245), (27, 684635), (31, 596295), (35, 528147), (45, 410781), (63, 293415), (93, 198765), (105, 176049), (135, 136927), (155, 119259), (189, 97805), (217, 85185), (279, 66255), (315, 58683), (465, 39753), (631, 29295), (651, 28395), (837, 22085), (945, 19561), (1085, 17037), (1395, 13251), (1893, 9765), (1953, 9465), (3155, 5859), (3255, 5679), (4185, 4417)]