21402470

素因数分解:

$2^1\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{1951}}^1$

素因数の和:3055

約数の個数: 16

約数和(自身を含む): 38579328

約数和(自身を除く): 17176858

約数列:

[1, 2, 5, 10, 1097, 1951, 2194, 3902, 5485, 9755, 10970, 19510, 2140247, 4280494, 10701235, 21402470]

約数ペア:

[(1, 21402470), (2, 10701235), (5, 4280494), (10, 2140247), (1097, 19510), (1951, 10970), (2194, 9755), (3902, 5485)]