21763540

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2741}}^1$

素因数の和:3147

約数の個数: 24

約数和(自身を含む): 45835272

約数和(自身を除く): 24071732

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 2741, 3970, 5482, 7940, 10964, 13705, 27410, 54820, 1088177, 2176354, 4352708, 5440885, 10881770, 21763540]

約数ペア:

[(1, 21763540), (2, 10881770), (4, 5440885), (5, 4352708), (10, 2176354), (20, 1088177), (397, 54820), (794, 27410), (1588, 13705), (1985, 10964), (2741, 7940), (3970, 5482)]