21957060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12619}}^1$

素因数の和:12660

約数の個数: 48

約数和(自身を含む): 63604800

約数和(自身を除く): 41647740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12619, 25238, 37857, 50476, 63095, 75714, 126190, 151428, 189285, 252380, 365951, 378570, 731902, 757140, 1097853, 1463804, 1829755, 2195706, 3659510, 4391412, 5489265, 7319020, 10978530, 21957060]

約数ペア:

[(1, 21957060), (2, 10978530), (3, 7319020), (4, 5489265), (5, 4391412), (6, 3659510), (10, 2195706), (12, 1829755), (15, 1463804), (20, 1097853), (29, 757140), (30, 731902), (58, 378570), (60, 365951), (87, 252380), (116, 189285), (145, 151428), (174, 126190), (290, 75714), (348, 63095), (435, 50476), (580, 37857), (870, 25238), (1740, 12619)]