20281005

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15541}}^1$

素因数の和:15581

約数の個数: 24

約数和(自身を含む): 36368280

約数和(自身を除く): 16087275

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15541, 46623, 77705, 139869, 233115, 450689, 699345, 1352067, 2253445, 4056201, 6760335, 20281005]

約数ペア:

[(1, 20281005), (3, 6760335), (5, 4056201), (9, 2253445), (15, 1352067), (29, 699345), (45, 450689), (87, 233115), (145, 139869), (261, 77705), (435, 46623), (1305, 15541)]