20198955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4093}}^1$

素因数の和:4155

約数の個数: 32

約数和(自身を含む): 37730304

約数和(自身を除く): 17531349

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4093, 4935, 12279, 20465, 28651, 61395, 85953, 143255, 192371, 429765, 577113, 961855, 1346597, 2885565, 4039791, 6732985, 20198955]

約数ペア:

[(1, 20198955), (3, 6732985), (5, 4039791), (7, 2885565), (15, 1346597), (21, 961855), (35, 577113), (47, 429765), (105, 192371), (141, 143255), (235, 85953), (329, 61395), (705, 28651), (987, 20465), (1645, 12279), (4093, 4935)]