21988833

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^2$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 31943520

約数和(自身を除く): 9954687

約数列:

[1, 3, 19, 41, 57, 97, 123, 291, 779, 1843, 2337, 3977, 5529, 9409, 11931, 28227, 75563, 178771, 226689, 385769, 536313, 1157307, 7329611, 21988833]

約数ペア:

[(1, 21988833), (3, 7329611), (19, 1157307), (41, 536313), (57, 385769), (97, 226689), (123, 178771), (291, 75563), (779, 28227), (1843, 11931), (2337, 9409), (3977, 5529)]