21834970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 22643750

約数列:

[1, 2, 5, 10, 17, 29, 34, 43, 58, 85, 86, 103, 145, 170, 206, 215, 290, 430, 493, 515, 731, 986, 1030, 1247, 1462, 1751, 2465, 2494, 2987, 3502, 3655, 4429, 4930, 5974, 6235, 7310, 8755, 8858, 12470, 14935, 17510, 21199, 22145, 29870, 42398, 44290, 50779, 75293, 101558, 105995, 128441, 150586, 211990, 253895, 256882, 376465, 507790, 642205, 752930, 1284410, 2183497, 4366994, 10917485, 21834970]

約数ペア:

[(1, 21834970), (2, 10917485), (5, 4366994), (10, 2183497), (17, 1284410), (29, 752930), (34, 642205), (43, 507790), (58, 376465), (85, 256882), (86, 253895), (103, 211990), (145, 150586), (170, 128441), (206, 105995), (215, 101558), (290, 75293), (430, 50779), (493, 44290), (515, 42398), (731, 29870), (986, 22145), (1030, 21199), (1247, 17510), (1462, 14935), (1751, 12470), (2465, 8858), (2494, 8755), (2987, 7310), (3502, 6235), (3655, 5974), (4429, 4930)]