21090214

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{797}}^1$

素因数の和:1031

約数の個数: 16

約数和(自身を含む): 32232816

約数和(自身を除く): 11142602

約数列:

[1, 2, 101, 131, 202, 262, 797, 1594, 13231, 26462, 80497, 104407, 160994, 208814, 10545107, 21090214]

約数ペア:

[(1, 21090214), (2, 10545107), (101, 208814), (131, 160994), (202, 104407), (262, 80497), (797, 26462), (1594, 13231)]