20457944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{859}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 41538000

約数和(自身を除く): 21080056

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 229, 458, 859, 916, 1718, 1832, 2977, 3436, 5954, 6872, 11167, 11908, 22334, 23816, 44668, 89336, 196711, 393422, 786844, 1573688, 2557243, 5114486, 10228972, 20457944]

約数ペア:

[(1, 20457944), (2, 10228972), (4, 5114486), (8, 2557243), (13, 1573688), (26, 786844), (52, 393422), (104, 196711), (229, 89336), (458, 44668), (859, 23816), (916, 22334), (1718, 11908), (1832, 11167), (2977, 6872), (3436, 5954)]