21000316589

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{1999}}^1\times {\mathrm{2837}}^1$

素因数の和:4889

約数の個数: 24

約数和(自身を含む): 25110624000

約数和(自身を除く): 4110307411

約数列:

[1, 7, 23, 161, 529, 1999, 2837, 3703, 13993, 19859, 45977, 65251, 321839, 456757, 1057471, 1500773, 5671163, 7402297, 10505411, 39698141, 130436749, 913057243, 3000045227, 21000316589]

約数ペア:

[(1, 21000316589), (7, 3000045227), (23, 913057243), (161, 130436749), (529, 39698141), (1999, 10505411), (2837, 7402297), (3703, 5671163), (13993, 1500773), (19859, 1057471), (45977, 456757), (65251, 321839)]