21355680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{44491}}^1$

素因数の和:44509

約数の個数: 48

約数和(自身を含む): 67271904

約数和(自身を除く): 45916224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 44491, 88982, 133473, 177964, 222455, 266946, 355928, 444910, 533892, 667365, 711856, 889820, 1067784, 1334730, 1423712, 1779640, 2135568, 2669460, 3559280, 4271136, 5338920, 7118560, 10677840, 21355680]

約数ペア:

[(1, 21355680), (2, 10677840), (3, 7118560), (4, 5338920), (5, 4271136), (6, 3559280), (8, 2669460), (10, 2135568), (12, 1779640), (15, 1423712), (16, 1334730), (20, 1067784), (24, 889820), (30, 711856), (32, 667365), (40, 533892), (48, 444910), (60, 355928), (80, 266946), (96, 222455), (120, 177964), (160, 133473), (240, 88982), (480, 44491)]