726942489

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20021}}^1$

素因数の和:20070

約数の個数: 48

約数和(自身を含む): 1278204480

約数和(自身を除く): 551261991

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 2793, 5187, 12103, 20021, 36309, 60063, 140147, 260273, 380399, 420441, 780819, 981029, 1141197, 1821911, 2662793, 2943087, 4945187, 5465733, 7988379, 12753377, 14835561, 18639551, 34616309, 38260131, 55918653, 103848927, 242314163, 726942489]

約数ペア:

[(1, 726942489), (3, 242314163), (7, 103848927), (13, 55918653), (19, 38260131), (21, 34616309), (39, 18639551), (49, 14835561), (57, 12753377), (91, 7988379), (133, 5465733), (147, 4945187), (247, 2943087), (273, 2662793), (399, 1821911), (637, 1141197), (741, 981029), (931, 780819), (1729, 420441), (1911, 380399), (2793, 260273), (5187, 140147), (12103, 60063), (20021, 36309)]