20628582

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 48190464

約数和(自身を除く): 27561882

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 47, 51, 78, 94, 102, 141, 221, 282, 331, 442, 611, 662, 663, 799, 993, 1222, 1326, 1598, 1833, 1986, 2397, 3666, 4303, 4794, 5627, 8606, 10387, 11254, 12909, 15557, 16881, 20774, 25818, 31114, 31161, 33762, 46671, 62322, 73151, 93342, 146302, 202241, 219453, 264469, 404482, 438906, 528938, 606723, 793407, 1213446, 1586814, 3438097, 6876194, 10314291, 20628582]

約数ペア:

[(1, 20628582), (2, 10314291), (3, 6876194), (6, 3438097), (13, 1586814), (17, 1213446), (26, 793407), (34, 606723), (39, 528938), (47, 438906), (51, 404482), (78, 264469), (94, 219453), (102, 202241), (141, 146302), (221, 93342), (282, 73151), (331, 62322), (442, 46671), (611, 33762), (662, 31161), (663, 31114), (799, 25818), (993, 20774), (1222, 16881), (1326, 15557), (1598, 12909), (1833, 11254), (1986, 10387), (2397, 8606), (3666, 5627), (4303, 4794)]