21938475

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22501}}^1$

素因数の和:22527

約数の個数: 24

約数和(自身を含む): 39063472

約数和(自身を除く): 17124997

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22501, 67503, 112505, 292513, 337515, 562525, 877539, 1462565, 1687575, 4387695, 7312825, 21938475]

約数ペア:

[(1, 21938475), (3, 7312825), (5, 4387695), (13, 1687575), (15, 1462565), (25, 877539), (39, 562525), (65, 337515), (75, 292513), (195, 112505), (325, 67503), (975, 22501)]