21309804

素因数分解:

$2^2\times 3^4\times {\mathrm{89}}^1\times {\mathrm{739}}^1$

素因数の和:844

約数の個数: 60

約数和(自身を含む): 56410200

約数和(自身を除く): 35100396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 89, 108, 162, 178, 267, 324, 356, 534, 739, 801, 1068, 1478, 1602, 2217, 2403, 2956, 3204, 4434, 4806, 6651, 7209, 8868, 9612, 13302, 14418, 19953, 26604, 28836, 39906, 59859, 65771, 79812, 119718, 131542, 197313, 239436, 263084, 394626, 591939, 789252, 1183878, 1775817, 2367756, 3551634, 5327451, 7103268, 10654902, 21309804]

約数ペア:

[(1, 21309804), (2, 10654902), (3, 7103268), (4, 5327451), (6, 3551634), (9, 2367756), (12, 1775817), (18, 1183878), (27, 789252), (36, 591939), (54, 394626), (81, 263084), (89, 239436), (108, 197313), (162, 131542), (178, 119718), (267, 79812), (324, 65771), (356, 59859), (534, 39906), (739, 28836), (801, 26604), (1068, 19953), (1478, 14418), (1602, 13302), (2217, 9612), (2403, 8868), (2956, 7209), (3204, 6651), (4434, 4806)]