21397080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4349}}^1$

素因数の和:4404

約数の個数: 64

約数和(自身を含む): 65772000

約数和(自身を除く): 44374920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4349, 4920, 8698, 13047, 17396, 21745, 26094, 34792, 43490, 52188, 65235, 86980, 104376, 130470, 173960, 178309, 260940, 356618, 521880, 534927, 713236, 891545, 1069854, 1426472, 1783090, 2139708, 2674635, 3566180, 4279416, 5349270, 7132360, 10698540, 21397080]

約数ペア:

[(1, 21397080), (2, 10698540), (3, 7132360), (4, 5349270), (5, 4279416), (6, 3566180), (8, 2674635), (10, 2139708), (12, 1783090), (15, 1426472), (20, 1069854), (24, 891545), (30, 713236), (40, 534927), (41, 521880), (60, 356618), (82, 260940), (120, 178309), (123, 173960), (164, 130470), (205, 104376), (246, 86980), (328, 65235), (410, 52188), (492, 43490), (615, 34792), (820, 26094), (984, 21745), (1230, 17396), (1640, 13047), (2460, 8698), (4349, 4920)]