21124980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117361}}^1$

素因数の和:117376

約数の個数: 36

約数和(自身を含む): 64079652

約数和(自身を除く): 42954672

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117361, 234722, 352083, 469444, 586805, 704166, 1056249, 1173610, 1408332, 1760415, 2112498, 2347220, 3520830, 4224996, 5281245, 7041660, 10562490, 21124980]

約数ペア:

[(1, 21124980), (2, 10562490), (3, 7041660), (4, 5281245), (5, 4224996), (6, 3520830), (9, 2347220), (10, 2112498), (12, 1760415), (15, 1408332), (18, 1173610), (20, 1056249), (30, 704166), (36, 586805), (45, 469444), (60, 352083), (90, 234722), (180, 117361)]