21153540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8599}}^1$

素因数の和:8652

約数の個数: 48

約数和(自身を含む): 60681600

約数和(自身を除く): 39528060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8599, 17198, 25797, 34396, 42995, 51594, 85990, 103188, 128985, 171980, 257970, 352559, 515940, 705118, 1057677, 1410236, 1762795, 2115354, 3525590, 4230708, 5288385, 7051180, 10576770, 21153540]

約数ペア:

[(1, 21153540), (2, 10576770), (3, 7051180), (4, 5288385), (5, 4230708), (6, 3525590), (10, 2115354), (12, 1762795), (15, 1410236), (20, 1057677), (30, 705118), (41, 515940), (60, 352559), (82, 257970), (123, 171980), (164, 128985), (205, 103188), (246, 85990), (410, 51594), (492, 42995), (615, 34396), (820, 25797), (1230, 17198), (2460, 8599)]