20675992

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 39639600

約数和(自身を除く): 18963608

約数列:

[1, 2, 4, 8, 109, 131, 181, 218, 262, 362, 436, 524, 724, 872, 1048, 1448, 14279, 19729, 23711, 28558, 39458, 47422, 57116, 78916, 94844, 114232, 157832, 189688, 2584499, 5168998, 10337996, 20675992]

約数ペア:

[(1, 20675992), (2, 10337996), (4, 5168998), (8, 2584499), (109, 189688), (131, 157832), (181, 114232), (218, 94844), (262, 78916), (362, 57116), (436, 47422), (524, 39458), (724, 28558), (872, 23711), (1048, 19729), (1448, 14279)]