21000929453

素因数分解:

$7^2\times {\mathrm{151}}^2\times {\mathrm{18797}}^1$

素因数の和:19113

約数の個数: 18

約数和(自身を含む): 24593818158

約数和(自身を除く): 3592888705

約数列:

[1, 7, 49, 151, 1057, 7399, 18797, 22801, 131579, 159607, 921053, 1117249, 2838347, 19868429, 139079003, 428590397, 3000132779, 21000929453]

約数ペア:

[(1, 21000929453), (7, 3000132779), (49, 428590397), (151, 139079003), (1057, 19868429), (7399, 2838347), (18797, 1117249), (22801, 921053), (131579, 159607)]