28921431

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{125201}}^1$

素因数の和:125222

約数の個数: 16

約数和(自身を含む): 48077568

約数和(自身を除く): 19156137

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 125201, 375603, 876407, 1377211, 2629221, 4131633, 9640477, 28921431]

約数ペア:

[(1, 28921431), (3, 9640477), (7, 4131633), (11, 2629221), (21, 1377211), (33, 876407), (77, 375603), (231, 125201)]