209216763

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 80

約数和(自身を含む): 380261376

約数和(自身を除く): 171044613

約数列:

[1, 3, 7, 9, 21, 23, 27, 61, 63, 69, 81, 161, 183, 189, 207, 263, 427, 483, 549, 567, 621, 789, 1281, 1403, 1449, 1647, 1841, 1863, 2367, 3843, 4209, 4347, 4941, 5523, 6049, 7101, 9821, 11529, 12627, 13041, 16043, 16569, 18147, 21303, 29463, 34587, 37881, 42343, 48129, 49707, 54441, 88389, 112301, 113643, 127029, 144387, 149121, 163323, 265167, 336903, 368989, 381087, 433161, 489969, 795501, 1010709, 1106967, 1143261, 1299483, 2582923, 3032127, 3320901, 3429783, 7748769, 9096381, 9962703, 23246307, 29888109, 69738921, 209216763]

約数ペア:

[(1, 209216763), (3, 69738921), (7, 29888109), (9, 23246307), (21, 9962703), (23, 9096381), (27, 7748769), (61, 3429783), (63, 3320901), (69, 3032127), (81, 2582923), (161, 1299483), (183, 1143261), (189, 1106967), (207, 1010709), (263, 795501), (427, 489969), (483, 433161), (549, 381087), (567, 368989), (621, 336903), (789, 265167), (1281, 163323), (1403, 149121), (1449, 144387), (1647, 127029), (1841, 113643), (1863, 112301), (2367, 88389), (3843, 54441), (4209, 49707), (4347, 48129), (4941, 42343), (5523, 37881), (6049, 34587), (7101, 29463), (9821, 21303), (11529, 18147), (12627, 16569), (13041, 16043)]