21530470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5711}}^1$

素因数の和:5760

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 21652250

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5711, 11422, 28555, 57110, 74243, 148486, 165619, 331238, 371215, 742430, 828095, 1656190, 2153047, 4306094, 10765235, 21530470]

約数ペア:

[(1, 21530470), (2, 10765235), (5, 4306094), (10, 2153047), (13, 1656190), (26, 828095), (29, 742430), (58, 371215), (65, 331238), (130, 165619), (145, 148486), (290, 74243), (377, 57110), (754, 28555), (1885, 11422), (3770, 5711)]