21898072

素因数分解:

$2^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2399}}^1$

素因数の和:2575

約数の個数: 32

約数和(自身を含む): 47232000

約数和(自身を除く): 25333928

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 163, 326, 652, 1141, 1304, 2282, 2399, 4564, 4798, 9128, 9596, 16793, 19192, 33586, 67172, 134344, 391037, 782074, 1564148, 2737259, 3128296, 5474518, 10949036, 21898072]

約数ペア:

[(1, 21898072), (2, 10949036), (4, 5474518), (7, 3128296), (8, 2737259), (14, 1564148), (28, 782074), (56, 391037), (163, 134344), (326, 67172), (652, 33586), (1141, 19192), (1304, 16793), (2282, 9596), (2399, 9128), (4564, 4798)]