21875340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{823}}^1$

素因数の和:1278

約数の個数: 48

約数和(自身を含む): 61463808

約数和(自身を除く): 39588468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 443, 823, 886, 1329, 1646, 1772, 2215, 2469, 2658, 3292, 4115, 4430, 4938, 5316, 6645, 8230, 8860, 9876, 12345, 13290, 16460, 24690, 26580, 49380, 364589, 729178, 1093767, 1458356, 1822945, 2187534, 3645890, 4375068, 5468835, 7291780, 10937670, 21875340]

約数ペア:

[(1, 21875340), (2, 10937670), (3, 7291780), (4, 5468835), (5, 4375068), (6, 3645890), (10, 2187534), (12, 1822945), (15, 1458356), (20, 1093767), (30, 729178), (60, 364589), (443, 49380), (823, 26580), (886, 24690), (1329, 16460), (1646, 13290), (1772, 12345), (2215, 9876), (2469, 8860), (2658, 8230), (3292, 6645), (4115, 5316), (4430, 4938)]