20912241

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 11988879

約数列:

[1, 3, 7, 21, 67, 89, 167, 201, 267, 469, 501, 623, 1169, 1407, 1869, 3507, 5963, 11189, 14863, 17889, 33567, 41741, 44589, 78323, 104041, 125223, 234969, 312123, 995821, 2987463, 6970747, 20912241]

約数ペア:

[(1, 20912241), (3, 6970747), (7, 2987463), (21, 995821), (67, 312123), (89, 234969), (167, 125223), (201, 104041), (267, 78323), (469, 44589), (501, 41741), (623, 33567), (1169, 17889), (1407, 14863), (1869, 11189), (3507, 5963)]