21551706

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1331

約数の個数: 48

約数和(自身を含む): 51554880

約数和(自身を除く): 30003174

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 89, 99, 178, 198, 267, 534, 801, 979, 1223, 1602, 1958, 2446, 2937, 3669, 5874, 7338, 8811, 11007, 13453, 17622, 22014, 26906, 40359, 80718, 108847, 121077, 217694, 242154, 326541, 653082, 979623, 1197317, 1959246, 2394634, 3591951, 7183902, 10775853, 21551706]

約数ペア:

[(1, 21551706), (2, 10775853), (3, 7183902), (6, 3591951), (9, 2394634), (11, 1959246), (18, 1197317), (22, 979623), (33, 653082), (66, 326541), (89, 242154), (99, 217694), (178, 121077), (198, 108847), (267, 80718), (534, 40359), (801, 26906), (979, 22014), (1223, 17622), (1602, 13453), (1958, 11007), (2446, 8811), (2937, 7338), (3669, 5874)]