21793928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{571}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 44204160

約数和(自身を除く): 22410232

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 367, 571, 734, 1142, 1468, 2284, 2936, 4568, 4771, 7423, 9542, 14846, 19084, 29692, 38168, 59384, 209557, 419114, 838228, 1676456, 2724241, 5448482, 10896964, 21793928]

約数ペア:

[(1, 21793928), (2, 10896964), (4, 5448482), (8, 2724241), (13, 1676456), (26, 838228), (52, 419114), (104, 209557), (367, 59384), (571, 38168), (734, 29692), (1142, 19084), (1468, 14846), (2284, 9542), (2936, 7423), (4568, 4771)]