21662253

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 32393088

約数和(自身を除く): 10730835

約数列:

[1, 3, 9, 47, 83, 141, 249, 423, 617, 747, 1851, 3901, 5553, 11703, 28999, 35109, 51211, 86997, 153633, 260991, 460899, 2406917, 7220751, 21662253]

約数ペア:

[(1, 21662253), (3, 7220751), (9, 2406917), (47, 460899), (83, 260991), (141, 153633), (249, 86997), (423, 51211), (617, 35109), (747, 28999), (1851, 11703), (3901, 5553)]