21646980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40087}}^1$

素因数の和:40105

約数の個数: 48

約数和(自身を含む): 67347840

約数和(自身を除く): 45700860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40087, 80174, 120261, 160348, 200435, 240522, 360783, 400870, 481044, 601305, 721566, 801740, 1082349, 1202610, 1443132, 1803915, 2164698, 2405220, 3607830, 4329396, 5411745, 7215660, 10823490, 21646980]

約数ペア:

[(1, 21646980), (2, 10823490), (3, 7215660), (4, 5411745), (5, 4329396), (6, 3607830), (9, 2405220), (10, 2164698), (12, 1803915), (15, 1443132), (18, 1202610), (20, 1082349), (27, 801740), (30, 721566), (36, 601305), (45, 481044), (54, 400870), (60, 360783), (90, 240522), (108, 200435), (135, 160348), (180, 120261), (270, 80174), (540, 40087)]