21839460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2011}}^1$

素因数の和:2204

約数の個数: 48

約数和(自身を含む): 61518912

約数和(自身を除く): 39679452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 362, 543, 724, 905, 1086, 1810, 2011, 2172, 2715, 3620, 4022, 5430, 6033, 8044, 10055, 10860, 12066, 20110, 24132, 30165, 40220, 60330, 120660, 363991, 727982, 1091973, 1455964, 1819955, 2183946, 3639910, 4367892, 5459865, 7279820, 10919730, 21839460]

約数ペア:

[(1, 21839460), (2, 10919730), (3, 7279820), (4, 5459865), (5, 4367892), (6, 3639910), (10, 2183946), (12, 1819955), (15, 1455964), (20, 1091973), (30, 727982), (60, 363991), (181, 120660), (362, 60330), (543, 40220), (724, 30165), (905, 24132), (1086, 20110), (1810, 12066), (2011, 10860), (2172, 10055), (2715, 8044), (3620, 6033), (4022, 5430)]