20047428

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{6257}}^1$

素因数の和:6356

約数の個数: 36

約数和(自身を含む): 51253020

約数和(自身を除く): 31205592

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 6257, 12514, 18771, 25028, 37542, 56313, 75084, 112626, 225252, 556873, 1113746, 1670619, 2227492, 3341238, 5011857, 6682476, 10023714, 20047428]

約数ペア:

[(1, 20047428), (2, 10023714), (3, 6682476), (4, 5011857), (6, 3341238), (9, 2227492), (12, 1670619), (18, 1113746), (36, 556873), (89, 225252), (178, 112626), (267, 75084), (356, 56313), (534, 37542), (801, 25028), (1068, 18771), (1602, 12514), (3204, 6257)]