1640761443

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{21841}}^1$

素因数の和:22355

約数の個数: 24

約数和(自身を含む): 2514625776

約数和(自身を除く): 873864333

約数列:

[1, 3, 9, 17, 51, 153, 491, 1473, 4419, 8347, 21841, 25041, 65523, 75123, 196569, 371297, 1113891, 3341673, 10723931, 32171793, 96515379, 182306827, 546920481, 1640761443]

約数ペア:

[(1, 1640761443), (3, 546920481), (9, 182306827), (17, 96515379), (51, 32171793), (153, 10723931), (491, 3341673), (1473, 1113891), (4419, 371297), (8347, 196569), (21841, 75123), (25041, 65523)]