21138943812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{701}}^1\times {\mathrm{358993}}^1$

素因数の和:359708

約数の個数: 48

約数和(自身を含む): 56451088512

約数和(自身を除く): 35312144700

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 701, 1402, 2103, 2804, 4206, 4907, 8412, 9814, 14721, 19628, 29442, 58884, 358993, 717986, 1076979, 1435972, 2153958, 2512951, 4307916, 5025902, 7538853, 10051804, 15077706, 30155412, 251654093, 503308186, 754962279, 1006616372, 1509924558, 1761578651, 3019849116, 3523157302, 5284735953, 7046314604, 10569471906, 21138943812]

約数ペア:

[(1, 21138943812), (2, 10569471906), (3, 7046314604), (4, 5284735953), (6, 3523157302), (7, 3019849116), (12, 1761578651), (14, 1509924558), (21, 1006616372), (28, 754962279), (42, 503308186), (84, 251654093), (701, 30155412), (1402, 15077706), (2103, 10051804), (2804, 7538853), (4206, 5025902), (4907, 4307916), (8412, 2512951), (9814, 2153958), (14721, 1435972), (19628, 1076979), (29442, 717986), (58884, 358993)]