21812747

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1361}}^1$

素因数の和:1450

約数の個数: 16

約数和(自身を含む): 25104384

約数和(自身を除く): 3291637

約数列:

[1, 11, 31, 47, 341, 517, 1361, 1457, 14971, 16027, 42191, 63967, 464101, 703637, 1982977, 21812747]

約数ペア:

[(1, 21812747), (11, 1982977), (31, 703637), (47, 464101), (341, 63967), (517, 42191), (1361, 16027), (1457, 14971)]