20172972141

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{36683}}^1$

素因数の和:36775

約数の個数: 72

約数和(自身を含む): 35881354080

約数和(自身を除く): 15708381939

約数列:

[1, 3, 7, 9, 21, 29, 43, 49, 63, 87, 129, 147, 203, 261, 301, 387, 441, 609, 903, 1247, 1421, 1827, 2107, 2709, 3741, 4263, 6321, 8729, 11223, 12789, 18963, 26187, 36683, 61103, 78561, 110049, 183309, 256781, 330147, 549927, 770343, 1063807, 1577369, 1797467, 2311029, 3191421, 4732107, 5392401, 7446649, 9574263, 11041583, 14196321, 16177203, 22339947, 33124749, 45743701, 52126543, 67019841, 77291081, 99374247, 137231103, 156379629, 231873243, 320205907, 411693309, 469138887, 695619729, 960617721, 2241441349, 2881853163, 6724324047, 20172972141]

約数ペア:

[(1, 20172972141), (3, 6724324047), (7, 2881853163), (9, 2241441349), (21, 960617721), (29, 695619729), (43, 469138887), (49, 411693309), (63, 320205907), (87, 231873243), (129, 156379629), (147, 137231103), (203, 99374247), (261, 77291081), (301, 67019841), (387, 52126543), (441, 45743701), (609, 33124749), (903, 22339947), (1247, 16177203), (1421, 14196321), (1827, 11041583), (2107, 9574263), (2709, 7446649), (3741, 5392401), (4263, 4732107), (6321, 3191421), (8729, 2311029), (11223, 1797467), (12789, 1577369), (18963, 1063807), (26187, 770343), (36683, 549927), (61103, 330147), (78561, 256781), (110049, 183309)]