9912357

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 72

約数和(自身を含む): 19032000

約数和(自身を除く): 9119643

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 49, 57, 63, 91, 117, 133, 147, 169, 171, 247, 273, 343, 399, 441, 507, 637, 741, 819, 931, 1029, 1183, 1197, 1521, 1729, 1911, 2223, 2793, 3087, 3211, 3549, 4459, 5187, 5733, 6517, 8281, 8379, 9633, 10647, 12103, 13377, 15561, 19551, 22477, 24843, 28899, 36309, 40131, 57967, 58653, 67431, 74529, 84721, 108927, 157339, 173901, 202293, 254163, 472017, 521703, 762489, 1101373, 1416051, 3304119, 9912357]

約数ペア:

[(1, 9912357), (3, 3304119), (7, 1416051), (9, 1101373), (13, 762489), (19, 521703), (21, 472017), (39, 254163), (49, 202293), (57, 173901), (63, 157339), (91, 108927), (117, 84721), (133, 74529), (147, 67431), (169, 58653), (171, 57967), (247, 40131), (273, 36309), (343, 28899), (399, 24843), (441, 22477), (507, 19551), (637, 15561), (741, 13377), (819, 12103), (931, 10647), (1029, 9633), (1183, 8379), (1197, 8281), (1521, 6517), (1729, 5733), (1911, 5187), (2223, 4459), (2793, 3549), (3087, 3211)]