20901966123

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{18089}}^1$

素因数の和:18411

約数の個数: 32

約数和(自身を含む): 29904940800

約数和(自身を除く): 9002974677

約数列:

[1, 3, 17, 51, 139, 163, 417, 489, 2363, 2771, 7089, 8313, 18089, 22657, 54267, 67971, 307513, 385169, 922539, 1155507, 2514371, 2948507, 7543113, 8845521, 42744307, 50124619, 128232921, 150373857, 409842473, 1229527419, 6967322041, 20901966123]

約数ペア:

[(1, 20901966123), (3, 6967322041), (17, 1229527419), (51, 409842473), (139, 150373857), (163, 128232921), (417, 50124619), (489, 42744307), (2363, 8845521), (2771, 7543113), (7089, 2948507), (8313, 2514371), (18089, 1155507), (22657, 922539), (54267, 385169), (67971, 307513)]