28541655

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21871}}^1$

素因数の和:21911

約数の個数: 24

約数和(自身を含む): 51180480

約数和(自身を除く): 22638825

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 21871, 65613, 109355, 196839, 328065, 634259, 984195, 1902777, 3171295, 5708331, 9513885, 28541655]

約数ペア:

[(1, 28541655), (3, 9513885), (5, 5708331), (9, 3171295), (15, 1902777), (29, 984195), (45, 634259), (87, 328065), (145, 196839), (261, 109355), (435, 65613), (1305, 21871)]