21012530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{941}}^1$

素因数の和:995

約数の個数: 64

約数和(自身を含む): 48833280

約数和(自身を除く): 27820750

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 55, 58, 70, 77, 110, 145, 154, 203, 290, 319, 385, 406, 638, 770, 941, 1015, 1595, 1882, 2030, 2233, 3190, 4466, 4705, 6587, 9410, 10351, 11165, 13174, 20702, 22330, 27289, 32935, 51755, 54578, 65870, 72457, 103510, 136445, 144914, 191023, 272890, 300179, 362285, 382046, 600358, 724570, 955115, 1500895, 1910230, 2101253, 3001790, 4202506, 10506265, 21012530]

約数ペア:

[(1, 21012530), (2, 10506265), (5, 4202506), (7, 3001790), (10, 2101253), (11, 1910230), (14, 1500895), (22, 955115), (29, 724570), (35, 600358), (55, 382046), (58, 362285), (70, 300179), (77, 272890), (110, 191023), (145, 144914), (154, 136445), (203, 103510), (290, 72457), (319, 65870), (385, 54578), (406, 51755), (638, 32935), (770, 27289), (941, 22330), (1015, 20702), (1595, 13174), (1882, 11165), (2030, 10351), (2233, 9410), (3190, 6587), (4466, 4705)]