21381480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59393}}^1$

素因数の和:59410

約数の個数: 48

約数和(自身を含む): 69490980

約数和(自身を除く): 48109500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59393, 118786, 178179, 237572, 296965, 356358, 475144, 534537, 593930, 712716, 890895, 1069074, 1187860, 1425432, 1781790, 2138148, 2375720, 2672685, 3563580, 4276296, 5345370, 7127160, 10690740, 21381480]

約数ペア:

[(1, 21381480), (2, 10690740), (3, 7127160), (4, 5345370), (5, 4276296), (6, 3563580), (8, 2672685), (9, 2375720), (10, 2138148), (12, 1781790), (15, 1425432), (18, 1187860), (20, 1069074), (24, 890895), (30, 712716), (36, 593930), (40, 534537), (45, 475144), (60, 356358), (72, 296965), (90, 237572), (120, 178179), (180, 118786), (360, 59393)]