21051720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58477}}^1$

素因数の和:58494

約数の個数: 48

約数和(自身を含む): 68419260

約数和(自身を除く): 47367540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58477, 116954, 175431, 233908, 292385, 350862, 467816, 526293, 584770, 701724, 877155, 1052586, 1169540, 1403448, 1754310, 2105172, 2339080, 2631465, 3508620, 4210344, 5262930, 7017240, 10525860, 21051720]

約数ペア:

[(1, 21051720), (2, 10525860), (3, 7017240), (4, 5262930), (5, 4210344), (6, 3508620), (8, 2631465), (9, 2339080), (10, 2105172), (12, 1754310), (15, 1403448), (18, 1169540), (20, 1052586), (24, 877155), (30, 701724), (36, 584770), (40, 526293), (45, 467816), (60, 350862), (72, 292385), (90, 233908), (120, 175431), (180, 116954), (360, 58477)]