21032493904

素因数分解:

$2^4\times {\mathrm{3121}}^1\times {\mathrm{421189}}^1$

素因数の和:424318

約数の個数: 20

約数和(自身を含む): 40763610580

約数和(自身を除く): 19731116676

約数列:

[1, 2, 4, 8, 16, 3121, 6242, 12484, 24968, 49936, 421189, 842378, 1684756, 3369512, 6739024, 1314530869, 2629061738, 5258123476, 10516246952, 21032493904]

約数ペア:

[(1, 21032493904), (2, 10516246952), (4, 5258123476), (8, 2629061738), (16, 1314530869), (3121, 6739024), (6242, 3369512), (12484, 1684756), (24968, 842378), (49936, 421189)]