2180913

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 3628800

約数和(自身を除く): 1447887

約数列:

[1, 3, 7, 17, 21, 41, 51, 119, 123, 149, 287, 357, 447, 697, 861, 1043, 2091, 2533, 3129, 4879, 6109, 7599, 14637, 17731, 18327, 42763, 53193, 103853, 128289, 311559, 726971, 2180913]

約数ペア:

[(1, 2180913), (3, 726971), (7, 311559), (17, 128289), (21, 103853), (41, 53193), (51, 42763), (119, 18327), (123, 17731), (149, 14637), (287, 7599), (357, 6109), (447, 4879), (697, 3129), (861, 2533), (1043, 2091)]