20672792

素因数分解:

$2^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1187}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 23805928

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 311, 622, 1187, 1244, 2177, 2374, 2488, 4354, 4748, 8309, 8708, 9496, 16618, 17416, 33236, 66472, 369157, 738314, 1476628, 2584099, 2953256, 5168198, 10336396, 20672792]

約数ペア:

[(1, 20672792), (2, 10336396), (4, 5168198), (7, 2953256), (8, 2584099), (14, 1476628), (28, 738314), (56, 369157), (311, 66472), (622, 33236), (1187, 17416), (1244, 16618), (2177, 9496), (2374, 8708), (2488, 8309), (4354, 4748)]