21043555440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87681481}}^1$

素因数の和:87681497

約数の個数: 40

約数和(自身を含む): 65235022608

約数和(自身を除く): 44191467168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87681481, 175362962, 263044443, 350725924, 438407405, 526088886, 701451848, 876814810, 1052177772, 1315222215, 1402903696, 1753629620, 2104355544, 2630444430, 3507259240, 4208711088, 5260888860, 7014518480, 10521777720, 21043555440]

約数ペア:

[(1, 21043555440), (2, 10521777720), (3, 7014518480), (4, 5260888860), (5, 4208711088), (6, 3507259240), (8, 2630444430), (10, 2104355544), (12, 1753629620), (15, 1402903696), (16, 1315222215), (20, 1052177772), (24, 876814810), (30, 701451848), (40, 526088886), (48, 438407405), (60, 350725924), (80, 263044443), (120, 175362962), (240, 87681481)]