20850990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9521}}^1$

素因数の和:9604

約数の個数: 32

約数和(自身を含む): 50733216

約数和(自身を除く): 29882226

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 9521, 19042, 28563, 47605, 57126, 95210, 142815, 285630, 695033, 1390066, 2085099, 3475165, 4170198, 6950330, 10425495, 20850990]

約数ペア:

[(1, 20850990), (2, 10425495), (3, 6950330), (5, 4170198), (6, 3475165), (10, 2085099), (15, 1390066), (30, 695033), (73, 285630), (146, 142815), (219, 95210), (365, 57126), (438, 47605), (730, 28563), (1095, 19042), (2190, 9521)]