20788575

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{3797}}^1$

素因数の和:3883

約数の個数: 24

約数和(自身を含む): 34850448

約数和(自身を除く): 14061873

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 3797, 5475, 11391, 18985, 56955, 94925, 277181, 284775, 831543, 1385905, 4157715, 6929525, 20788575]

約数ペア:

[(1, 20788575), (3, 6929525), (5, 4157715), (15, 1385905), (25, 831543), (73, 284775), (75, 277181), (219, 94925), (365, 56955), (1095, 18985), (1825, 11391), (3797, 5475)]