21404856

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{911}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 37692744

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 89, 132, 178, 264, 267, 356, 534, 712, 911, 979, 1068, 1822, 1958, 2136, 2733, 2937, 3644, 3916, 5466, 5874, 7288, 7832, 10021, 10932, 11748, 20042, 21864, 23496, 30063, 40084, 60126, 80168, 81079, 120252, 162158, 240504, 243237, 324316, 486474, 648632, 891869, 972948, 1783738, 1945896, 2675607, 3567476, 5351214, 7134952, 10702428, 21404856]

約数ペア:

[(1, 21404856), (2, 10702428), (3, 7134952), (4, 5351214), (6, 3567476), (8, 2675607), (11, 1945896), (12, 1783738), (22, 972948), (24, 891869), (33, 648632), (44, 486474), (66, 324316), (88, 243237), (89, 240504), (132, 162158), (178, 120252), (264, 81079), (267, 80168), (356, 60126), (534, 40084), (712, 30063), (911, 23496), (979, 21864), (1068, 20042), (1822, 11748), (1958, 10932), (2136, 10021), (2733, 7832), (2937, 7288), (3644, 5874), (3916, 5466)]