21510115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{3461}}^1$

素因数の和:3590

約数の個数: 16

約数和(自身を含む): 28416096

約数和(自身を除く): 6905981

約数列:

[1, 5, 11, 55, 113, 565, 1243, 3461, 6215, 17305, 38071, 190355, 391093, 1955465, 4302023, 21510115]

約数ペア:

[(1, 21510115), (5, 4302023), (11, 1955465), (55, 391093), (113, 190355), (565, 38071), (1243, 17305), (3461, 6215)]