20212725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20731}}^1$

素因数の和:20757

約数の個数: 24

約数和(自身を含む): 35990752

約数和(自身を除く): 15778027

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20731, 62193, 103655, 269503, 310965, 518275, 808509, 1347515, 1554825, 4042545, 6737575, 20212725]

約数ペア:

[(1, 20212725), (3, 6737575), (5, 4042545), (13, 1554825), (15, 1347515), (25, 808509), (39, 518275), (65, 310965), (75, 269503), (195, 103655), (325, 62193), (975, 20731)]