21483780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12347}}^1$

素因数の和:12388

約数の個数: 48

約数和(自身を含む): 62233920

約数和(自身を除く): 40750140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12347, 24694, 37041, 49388, 61735, 74082, 123470, 148164, 185205, 246940, 358063, 370410, 716126, 740820, 1074189, 1432252, 1790315, 2148378, 3580630, 4296756, 5370945, 7161260, 10741890, 21483780]

約数ペア:

[(1, 21483780), (2, 10741890), (3, 7161260), (4, 5370945), (5, 4296756), (6, 3580630), (10, 2148378), (12, 1790315), (15, 1432252), (20, 1074189), (29, 740820), (30, 716126), (58, 370410), (60, 358063), (87, 246940), (116, 185205), (145, 148164), (174, 123470), (290, 74082), (348, 61735), (435, 49388), (580, 37041), (870, 24694), (1740, 12347)]