21000984

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51473}}^1$

素因数の和:51499

約数の個数: 32

約数和(自身を含む): 55591920

約数和(自身を除く): 34590936

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51473, 102946, 154419, 205892, 308838, 411784, 617676, 875041, 1235352, 1750082, 2625123, 3500164, 5250246, 7000328, 10500492, 21000984]

約数ペア:

[(1, 21000984), (2, 10500492), (3, 7000328), (4, 5250246), (6, 3500164), (8, 2625123), (12, 1750082), (17, 1235352), (24, 875041), (34, 617676), (51, 411784), (68, 308838), (102, 205892), (136, 154419), (204, 102946), (408, 51473)]