20879222

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1400

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 18130378

約数列:

[1, 2, 7, 13, 14, 26, 89, 91, 178, 182, 623, 1157, 1246, 1289, 2314, 2578, 8099, 9023, 16198, 16757, 18046, 33514, 114721, 117299, 229442, 234598, 803047, 1491373, 1606094, 2982746, 10439611, 20879222]

約数ペア:

[(1, 20879222), (2, 10439611), (7, 2982746), (13, 1606094), (14, 1491373), (26, 803047), (89, 234598), (91, 229442), (178, 117299), (182, 114721), (623, 33514), (1157, 18046), (1246, 16757), (1289, 16198), (2314, 9023), (2578, 8099)]