21279286

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^2\times {\mathrm{149}}^1$

素因数の和:360

約数の個数: 24

約数和(自身を含む): 37090800

約数和(自身を除く): 15811514

約数列:

[1, 2, 7, 14, 101, 149, 202, 298, 707, 1043, 1414, 2086, 10201, 15049, 20402, 30098, 71407, 105343, 142814, 210686, 1519949, 3039898, 10639643, 21279286]

約数ペア:

[(1, 21279286), (2, 10639643), (7, 3039898), (14, 1519949), (101, 210686), (149, 142814), (202, 105343), (298, 71407), (707, 30098), (1043, 20402), (1414, 15049), (2086, 10201)]