21847480

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11621}}^1$

素因数の和:11679

約数の個数: 32

約数和(自身を含む): 50207040

約数和(自身を除く): 28359560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11621, 23242, 46484, 58105, 92968, 116210, 232420, 464840, 546187, 1092374, 2184748, 2730935, 4369496, 5461870, 10923740, 21847480]

約数ペア:

[(1, 21847480), (2, 10923740), (4, 5461870), (5, 4369496), (8, 2730935), (10, 2184748), (20, 1092374), (40, 546187), (47, 464840), (94, 232420), (188, 116210), (235, 92968), (376, 58105), (470, 46484), (940, 23242), (1880, 11621)]