21113982

素因数分解:

$2^1\times 3^2\times {\mathrm{491}}^1\times {\mathrm{2389}}^1$

素因数の和:2888

約数の個数: 24

約数和(自身を含む): 45859320

約数和(自身を除く): 24745338

約数列:

[1, 2, 3, 6, 9, 18, 491, 982, 1473, 2389, 2946, 4419, 4778, 7167, 8838, 14334, 21501, 43002, 1172999, 2345998, 3518997, 7037994, 10556991, 21113982]

約数ペア:

[(1, 21113982), (2, 10556991), (3, 7037994), (6, 3518997), (9, 2345998), (18, 1172999), (491, 43002), (982, 21501), (1473, 14334), (2389, 8838), (2946, 7167), (4419, 4778)]