21302684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4603}}^1$

素因数の和:4709

約数の個数: 24

約数和(自身を含む): 40607280

約数和(自身を除く): 19304596

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4603, 4628, 9206, 18412, 59839, 119678, 239356, 409667, 819334, 1638668, 5325671, 10651342, 21302684]

約数ペア:

[(1, 21302684), (2, 10651342), (4, 5325671), (13, 1638668), (26, 819334), (52, 409667), (89, 239356), (178, 119678), (356, 59839), (1157, 18412), (2314, 9206), (4603, 4628)]