21448740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8719}}^1$

素因数の和:8772

約数の個数: 48

約数和(自身を含む): 61528320

約数和(自身を除く): 40079580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8719, 17438, 26157, 34876, 43595, 52314, 87190, 104628, 130785, 174380, 261570, 357479, 523140, 714958, 1072437, 1429916, 1787395, 2144874, 3574790, 4289748, 5362185, 7149580, 10724370, 21448740]

約数ペア:

[(1, 21448740), (2, 10724370), (3, 7149580), (4, 5362185), (5, 4289748), (6, 3574790), (10, 2144874), (12, 1787395), (15, 1429916), (20, 1072437), (30, 714958), (41, 523140), (60, 357479), (82, 261570), (123, 174380), (164, 130785), (205, 104628), (246, 87190), (410, 52314), (492, 43595), (615, 34876), (820, 26157), (1230, 17438), (2460, 8719)]