21196591

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 23788800

約数和(自身を除く): 2592209

約数列:

[1, 13, 31, 149, 353, 403, 1937, 4589, 4619, 10943, 52597, 60047, 142259, 683761, 1630507, 21196591]

約数ペア:

[(1, 21196591), (13, 1630507), (31, 683761), (149, 142259), (353, 60047), (403, 52597), (1937, 10943), (4589, 4619)]