20851875

素因数分解:

$3^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{337}}^1$

素因数の和:374

約数の個数: 60

約数和(自身を含む): 41180568

約数和(自身を除く): 20328693

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 337, 375, 495, 625, 825, 1011, 1125, 1375, 1685, 1875, 2475, 3033, 3707, 4125, 5055, 5625, 6875, 8425, 11121, 12375, 15165, 18535, 20625, 25275, 33363, 42125, 55605, 61875, 75825, 92675, 126375, 166815, 210625, 278025, 379125, 463375, 631875, 834075, 1390125, 1895625, 2316875, 4170375, 6950625, 20851875]

約数ペア:

[(1, 20851875), (3, 6950625), (5, 4170375), (9, 2316875), (11, 1895625), (15, 1390125), (25, 834075), (33, 631875), (45, 463375), (55, 379125), (75, 278025), (99, 210625), (125, 166815), (165, 126375), (225, 92675), (275, 75825), (337, 61875), (375, 55605), (495, 42125), (625, 33363), (825, 25275), (1011, 20625), (1125, 18535), (1375, 15165), (1685, 12375), (1875, 11121), (2475, 8425), (3033, 6875), (3707, 5625), (4125, 5055)]