21657438

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1229}}^1$

素因数の和:1337

約数の個数: 48

約数和(自身を含む): 51807600

約数和(自身を除く): 30150162

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 89, 99, 178, 198, 267, 534, 801, 979, 1229, 1602, 1958, 2458, 2937, 3687, 5874, 7374, 8811, 11061, 13519, 17622, 22122, 27038, 40557, 81114, 109381, 121671, 218762, 243342, 328143, 656286, 984429, 1203191, 1968858, 2406382, 3609573, 7219146, 10828719, 21657438]

約数ペア:

[(1, 21657438), (2, 10828719), (3, 7219146), (6, 3609573), (9, 2406382), (11, 1968858), (18, 1203191), (22, 984429), (33, 656286), (66, 328143), (89, 243342), (99, 218762), (178, 121671), (198, 109381), (267, 81114), (534, 40557), (801, 27038), (979, 22122), (1229, 17622), (1602, 13519), (1958, 11061), (2458, 8811), (2937, 7374), (3687, 5874)]