21837465

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 43706880

約数和(自身を除く): 21869415

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 115, 117, 135, 195, 207, 299, 345, 351, 541, 585, 621, 897, 1035, 1495, 1623, 1755, 2691, 2705, 3105, 4485, 4869, 7033, 8073, 8115, 12443, 13455, 14607, 21099, 24345, 35165, 37329, 40365, 62215, 63297, 73035, 105495, 111987, 161759, 186645, 189891, 316485, 335961, 485277, 559935, 808795, 949455, 1455831, 1679805, 2426385, 4367493, 7279155, 21837465]

約数ペア:

[(1, 21837465), (3, 7279155), (5, 4367493), (9, 2426385), (13, 1679805), (15, 1455831), (23, 949455), (27, 808795), (39, 559935), (45, 485277), (65, 335961), (69, 316485), (115, 189891), (117, 186645), (135, 161759), (195, 111987), (207, 105495), (299, 73035), (345, 63297), (351, 62215), (541, 40365), (585, 37329), (621, 35165), (897, 24345), (1035, 21099), (1495, 14607), (1623, 13455), (1755, 12443), (2691, 8115), (2705, 8073), (3105, 7033), (4485, 4869)]