21431460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{547}}^1\times {\mathrm{653}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 60209856

約数和(自身を除く): 38778396

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 547, 653, 1094, 1306, 1641, 1959, 2188, 2612, 2735, 3265, 3282, 3918, 5470, 6530, 6564, 7836, 8205, 9795, 10940, 13060, 16410, 19590, 32820, 39180, 357191, 714382, 1071573, 1428764, 1785955, 2143146, 3571910, 4286292, 5357865, 7143820, 10715730, 21431460]

約数ペア:

[(1, 21431460), (2, 10715730), (3, 7143820), (4, 5357865), (5, 4286292), (6, 3571910), (10, 2143146), (12, 1785955), (15, 1428764), (20, 1071573), (30, 714382), (60, 357191), (547, 39180), (653, 32820), (1094, 19590), (1306, 16410), (1641, 13060), (1959, 10940), (2188, 9795), (2612, 8205), (2735, 7836), (3265, 6564), (3282, 6530), (3918, 5470)]