20912475

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{5261}}^1$

素因数の和:5327

約数の個数: 24

約数和(自身を含む): 35234352

約数和(自身を除く): 14321877

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 5261, 15783, 26305, 78915, 131525, 278833, 394575, 836499, 1394165, 4182495, 6970825, 20912475]

約数ペア:

[(1, 20912475), (3, 6970825), (5, 4182495), (15, 1394165), (25, 836499), (53, 394575), (75, 278833), (159, 131525), (265, 78915), (795, 26305), (1325, 15783), (3975, 5261)]