21408312

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{18979}}^1$

素因数の和:19035

約数の個数: 32

約数和(自身を含む): 54662400

約数和(自身を除く): 33254088

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 564, 1128, 18979, 37958, 56937, 75916, 113874, 151832, 227748, 455496, 892013, 1784026, 2676039, 3568052, 5352078, 7136104, 10704156, 21408312]

約数ペア:

[(1, 21408312), (2, 10704156), (3, 7136104), (4, 5352078), (6, 3568052), (8, 2676039), (12, 1784026), (24, 892013), (47, 455496), (94, 227748), (141, 151832), (188, 113874), (282, 75916), (376, 56937), (564, 37958), (1128, 18979)]