21152803990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{218453}}^1$

素因数の和:218904

約数の個数: 32

約数和(自身を含む): 39825038016

約数和(自身を除く): 18672234026

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 421, 842, 2105, 4210, 9683, 19366, 48415, 96830, 218453, 436906, 1092265, 2184530, 5024419, 10048838, 25122095, 50244190, 91968713, 183937426, 459843565, 919687130, 2115280399, 4230560798, 10576401995, 21152803990]

約数ペア:

[(1, 21152803990), (2, 10576401995), (5, 4230560798), (10, 2115280399), (23, 919687130), (46, 459843565), (115, 183937426), (230, 91968713), (421, 50244190), (842, 25122095), (2105, 10048838), (4210, 5024419), (9683, 2184530), (19366, 1092265), (48415, 436906), (96830, 218453)]