18217890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2851}}^1$

素因数の和:2935

約数の個数: 48

約数和(自身を含む): 48050496

約数和(自身を除く): 29832606

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 2851, 3195, 5702, 6390, 8553, 14255, 17106, 25659, 28510, 42765, 51318, 85530, 128295, 202421, 256590, 404842, 607263, 1012105, 1214526, 1821789, 2024210, 3036315, 3643578, 6072630, 9108945, 18217890]

約数ペア:

[(1, 18217890), (2, 9108945), (3, 6072630), (5, 3643578), (6, 3036315), (9, 2024210), (10, 1821789), (15, 1214526), (18, 1012105), (30, 607263), (45, 404842), (71, 256590), (90, 202421), (142, 128295), (213, 85530), (355, 51318), (426, 42765), (639, 28510), (710, 25659), (1065, 17106), (1278, 14255), (2130, 8553), (2851, 6390), (3195, 5702)]