21399960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178333}}^1$

素因数の和:178347

約数の個数: 32

約数和(自身を含む): 64200240

約数和(自身を除く): 42800280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178333, 356666, 534999, 713332, 891665, 1069998, 1426664, 1783330, 2139996, 2674995, 3566660, 4279992, 5349990, 7133320, 10699980, 21399960]

約数ペア:

[(1, 21399960), (2, 10699980), (3, 7133320), (4, 5349990), (5, 4279992), (6, 3566660), (8, 2674995), (10, 2139996), (12, 1783330), (15, 1426664), (20, 1069998), (24, 891665), (30, 713332), (40, 534999), (60, 356666), (120, 178333)]