21094620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20681}}^1$

素因数の和:20710

約数の個数: 48

約数和(自身を含む): 62542368

約数和(自身を除く): 41447748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20681, 41362, 62043, 82724, 103405, 124086, 206810, 248172, 310215, 351577, 413620, 620430, 703154, 1054731, 1240860, 1406308, 1757885, 2109462, 3515770, 4218924, 5273655, 7031540, 10547310, 21094620]

約数ペア:

[(1, 21094620), (2, 10547310), (3, 7031540), (4, 5273655), (5, 4218924), (6, 3515770), (10, 2109462), (12, 1757885), (15, 1406308), (17, 1240860), (20, 1054731), (30, 703154), (34, 620430), (51, 413620), (60, 351577), (68, 310215), (85, 248172), (102, 206810), (170, 124086), (204, 103405), (255, 82724), (340, 62043), (510, 41362), (1020, 20681)]