20149983

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 15230817

約数列:

[1, 3, 7, 9, 21, 29, 41, 63, 87, 123, 203, 261, 269, 287, 369, 609, 807, 861, 1189, 1827, 1883, 2421, 2583, 3567, 5649, 7801, 8323, 10701, 11029, 16947, 23403, 24969, 33087, 54607, 70209, 74907, 77203, 99261, 163821, 231609, 319841, 491463, 694827, 959523, 2238887, 2878569, 6716661, 20149983]

約数ペア:

[(1, 20149983), (3, 6716661), (7, 2878569), (9, 2238887), (21, 959523), (29, 694827), (41, 491463), (63, 319841), (87, 231609), (123, 163821), (203, 99261), (261, 77203), (269, 74907), (287, 70209), (369, 54607), (609, 33087), (807, 24969), (861, 23403), (1189, 16947), (1827, 11029), (1883, 10701), (2421, 8323), (2583, 7801), (3567, 5649)]