21471960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178933}}^1$

素因数の和:178947

約数の個数: 32

約数和(自身を含む): 64416240

約数和(自身を除く): 42944280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178933, 357866, 536799, 715732, 894665, 1073598, 1431464, 1789330, 2147196, 2683995, 3578660, 4294392, 5367990, 7157320, 10735980, 21471960]

約数ペア:

[(1, 21471960), (2, 10735980), (3, 7157320), (4, 5367990), (5, 4294392), (6, 3578660), (8, 2683995), (10, 2147196), (12, 1789330), (15, 1431464), (20, 1073598), (24, 894665), (30, 715732), (40, 536799), (60, 357866), (120, 178933)]