20787704

素因数分解:

$2^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1621}}^1$

素因数の和:1863

約数の個数: 32

約数和(自身を含む): 44767200

約数和(自身を除く): 23979496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 229, 458, 916, 1603, 1621, 1832, 3206, 3242, 6412, 6484, 11347, 12824, 12968, 22694, 45388, 90776, 371209, 742418, 1484836, 2598463, 2969672, 5196926, 10393852, 20787704]

約数ペア:

[(1, 20787704), (2, 10393852), (4, 5196926), (7, 2969672), (8, 2598463), (14, 1484836), (28, 742418), (56, 371209), (229, 90776), (458, 45388), (916, 22694), (1603, 12968), (1621, 12824), (1832, 11347), (3206, 6484), (3242, 6412)]