21821340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12541}}^1$

素因数の和:12582

約数の個数: 48

約数和(自身を含む): 63211680

約数和(自身を除く): 41390340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12541, 25082, 37623, 50164, 62705, 75246, 125410, 150492, 188115, 250820, 363689, 376230, 727378, 752460, 1091067, 1454756, 1818445, 2182134, 3636890, 4364268, 5455335, 7273780, 10910670, 21821340]

約数ペア:

[(1, 21821340), (2, 10910670), (3, 7273780), (4, 5455335), (5, 4364268), (6, 3636890), (10, 2182134), (12, 1818445), (15, 1454756), (20, 1091067), (29, 752460), (30, 727378), (58, 376230), (60, 363689), (87, 250820), (116, 188115), (145, 150492), (174, 125410), (290, 75246), (348, 62705), (435, 50164), (580, 37623), (870, 25082), (1740, 12541)]