2158863

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 3311616

約数和(自身を除く): 1152753

約数列:

[1, 3, 7, 21, 223, 461, 669, 1383, 1561, 3227, 4683, 9681, 102803, 308409, 719621, 2158863]

約数ペア:

[(1, 2158863), (3, 719621), (7, 308409), (21, 102803), (223, 9681), (461, 4683), (669, 3227), (1383, 1561)]