21627837

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 40734720

約数和(自身を除く): 19106883

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 101, 103, 189, 231, 297, 303, 309, 693, 707, 721, 909, 927, 1111, 1133, 2079, 2121, 2163, 2727, 2781, 3333, 3399, 6363, 6489, 7777, 7931, 9999, 10197, 10403, 19089, 19467, 23331, 23793, 29997, 30591, 31209, 69993, 71379, 72821, 93627, 114433, 209979, 214137, 218463, 280881, 343299, 655389, 801031, 1029897, 1966167, 2403093, 3089691, 7209279, 21627837]

約数ペア:

[(1, 21627837), (3, 7209279), (7, 3089691), (9, 2403093), (11, 1966167), (21, 1029897), (27, 801031), (33, 655389), (63, 343299), (77, 280881), (99, 218463), (101, 214137), (103, 209979), (189, 114433), (231, 93627), (297, 72821), (303, 71379), (309, 69993), (693, 31209), (707, 30591), (721, 29997), (909, 23793), (927, 23331), (1111, 19467), (1133, 19089), (2079, 10403), (2121, 10197), (2163, 9999), (2727, 7931), (2781, 7777), (3333, 6489), (3399, 6363)]