21057720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{175481}}^1$

素因数の和:175495

約数の個数: 32

約数和(自身を含む): 63173520

約数和(自身を除く): 42115800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 175481, 350962, 526443, 701924, 877405, 1052886, 1403848, 1754810, 2105772, 2632215, 3509620, 4211544, 5264430, 7019240, 10528860, 21057720]

約数ペア:

[(1, 21057720), (2, 10528860), (3, 7019240), (4, 5264430), (5, 4211544), (6, 3509620), (8, 2632215), (10, 2105772), (12, 1754810), (15, 1403848), (20, 1052886), (24, 877405), (30, 701924), (40, 526443), (60, 350962), (120, 175481)]