641693829

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1\times {\mathrm{947}}^1$

素因数の和:1785

約数の個数: 32

約数和(自身を含む): 1004000256

約数和(自身を除く): 362306427

約数列:

[1, 3, 7, 21, 41, 123, 287, 787, 861, 947, 2361, 2841, 5509, 6629, 16527, 19887, 32267, 38827, 96801, 116481, 225869, 271789, 677607, 745289, 815367, 2235867, 5217023, 15651069, 30556849, 91670547, 213897943, 641693829]

約数ペア:

[(1, 641693829), (3, 213897943), (7, 91670547), (21, 30556849), (41, 15651069), (123, 5217023), (287, 2235867), (787, 815367), (861, 745289), (947, 677607), (2361, 271789), (2841, 225869), (5509, 116481), (6629, 96801), (16527, 38827), (19887, 32267)]