20856744

素因数分解:

$2^3\times 3^3\times {\mathrm{223}}^1\times {\mathrm{433}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 58329600

約数和(自身を除く): 37472856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 223, 433, 446, 669, 866, 892, 1299, 1338, 1732, 1784, 2007, 2598, 2676, 3464, 3897, 4014, 5196, 5352, 6021, 7794, 8028, 10392, 11691, 12042, 15588, 16056, 23382, 24084, 31176, 46764, 48168, 93528, 96559, 193118, 289677, 386236, 579354, 772472, 869031, 1158708, 1738062, 2317416, 2607093, 3476124, 5214186, 6952248, 10428372, 20856744]

約数ペア:

[(1, 20856744), (2, 10428372), (3, 6952248), (4, 5214186), (6, 3476124), (8, 2607093), (9, 2317416), (12, 1738062), (18, 1158708), (24, 869031), (27, 772472), (36, 579354), (54, 386236), (72, 289677), (108, 193118), (216, 96559), (223, 93528), (433, 48168), (446, 46764), (669, 31176), (866, 24084), (892, 23382), (1299, 16056), (1338, 15588), (1732, 12042), (1784, 11691), (2007, 10392), (2598, 8028), (2676, 7794), (3464, 6021), (3897, 5352), (4014, 5196)]