21051480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5659}}^1$

素因数の和:5704

約数の個数: 64

約数和(自身を含む): 65203200

約数和(自身を除く): 44151720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5659, 11318, 16977, 22636, 28295, 33954, 45272, 56590, 67908, 84885, 113180, 135816, 169770, 175429, 226360, 339540, 350858, 526287, 679080, 701716, 877145, 1052574, 1403432, 1754290, 2105148, 2631435, 3508580, 4210296, 5262870, 7017160, 10525740, 21051480]

約数ペア:

[(1, 21051480), (2, 10525740), (3, 7017160), (4, 5262870), (5, 4210296), (6, 3508580), (8, 2631435), (10, 2105148), (12, 1754290), (15, 1403432), (20, 1052574), (24, 877145), (30, 701716), (31, 679080), (40, 526287), (60, 350858), (62, 339540), (93, 226360), (120, 175429), (124, 169770), (155, 135816), (186, 113180), (248, 84885), (310, 67908), (372, 56590), (465, 45272), (620, 33954), (744, 28295), (930, 22636), (1240, 16977), (1860, 11318), (3720, 5659)]