18371529

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 56

約数和(自身を含む): 31478400

約数和(自身を除く): 13106871

約数列:

[1, 3, 9, 11, 27, 29, 33, 79, 81, 87, 99, 237, 243, 261, 297, 319, 711, 729, 783, 869, 891, 957, 2133, 2291, 2349, 2607, 2673, 2871, 6399, 6873, 7047, 7821, 8019, 8613, 19197, 20619, 21141, 23463, 25201, 25839, 57591, 61857, 70389, 75603, 77517, 185571, 211167, 226809, 232551, 556713, 633501, 680427, 1670139, 2041281, 6123843, 18371529]

約数ペア:

[(1, 18371529), (3, 6123843), (9, 2041281), (11, 1670139), (27, 680427), (29, 633501), (33, 556713), (79, 232551), (81, 226809), (87, 211167), (99, 185571), (237, 77517), (243, 75603), (261, 70389), (297, 61857), (319, 57591), (711, 25839), (729, 25201), (783, 23463), (869, 21141), (891, 20619), (957, 19197), (2133, 8613), (2291, 8019), (2349, 7821), (2607, 7047), (2673, 6873), (2871, 6399)]