21087840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43933}}^1$

素因数の和:43951

約数の個数: 48

約数和(自身を含む): 66428208

約数和(自身を除く): 45340368

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, 43933, 87866, 131799, 175732, 219665, 263598, 351464, 439330, 527196, 658995, 702928, 878660, 1054392, 1317990, 1405856, 1757320, 2108784, 2635980, 3514640, 4217568, 5271960, 7029280, 10543920, 21087840]

約数ペア:

[(1, 21087840), (2, 10543920), (3, 7029280), (4, 5271960), (5, 4217568), (6, 3514640), (8, 2635980), (10, 2108784), (12, 1757320), (15, 1405856), (16, 1317990), (20, 1054392), (24, 878660), (30, 702928), (32, 658995), (40, 527196), (48, 439330), (60, 351464), (80, 263598), (96, 219665), (120, 175732), (160, 131799), (240, 87866), (480, 43933)]