21240018

素因数分解:

$2^1\times 3^2\times {\mathrm{487}}^1\times {\mathrm{2423}}^1$

素因数の和:2918

約数の個数: 24

約数和(自身を含む): 46133568

約数和(自身を除く): 24893550

約数列:

[1, 2, 3, 6, 9, 18, 487, 974, 1461, 2423, 2922, 4383, 4846, 7269, 8766, 14538, 21807, 43614, 1180001, 2360002, 3540003, 7080006, 10620009, 21240018]

約数ペア:

[(1, 21240018), (2, 10620009), (3, 7080006), (6, 3540003), (9, 2360002), (18, 1180001), (487, 43614), (974, 21807), (1461, 14538), (2423, 8766), (2922, 7269), (4383, 4846)]