20883375

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1017

約数の個数: 48

約数和(自身を含む): 39667680

約数和(自身を除く): 18784305

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 375, 475, 855, 977, 1125, 1425, 2375, 2931, 4275, 4885, 7125, 8793, 14655, 18563, 21375, 24425, 43965, 55689, 73275, 92815, 122125, 167067, 219825, 278445, 366375, 464075, 835335, 1099125, 1392225, 2320375, 4176675, 6961125, 20883375]

約数ペア:

[(1, 20883375), (3, 6961125), (5, 4176675), (9, 2320375), (15, 1392225), (19, 1099125), (25, 835335), (45, 464075), (57, 366375), (75, 278445), (95, 219825), (125, 167067), (171, 122125), (225, 92815), (285, 73275), (375, 55689), (475, 43965), (855, 24425), (977, 21375), (1125, 18563), (1425, 14655), (2375, 8793), (2931, 7125), (4275, 4885)]