21000306642

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{20441}}^1$

素因数の和:20915

約数の個数: 64

約数和(自身を含む): 48911655168

約数和(自身を除く): 27911348526

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 401, 427, 802, 854, 1203, 1281, 2406, 2562, 2807, 5614, 8421, 16842, 20441, 24461, 40882, 48922, 61323, 73383, 122646, 143087, 146766, 171227, 286174, 342454, 429261, 513681, 858522, 1027362, 1246901, 2493802, 3740703, 7481406, 8196841, 8728307, 16393682, 17456614, 24590523, 26184921, 49181046, 52369842, 57377887, 114755774, 172133661, 344267322, 500007301, 1000014602, 1500021903, 3000043806, 3500051107, 7000102214, 10500153321, 21000306642]

約数ペア:

[(1, 21000306642), (2, 10500153321), (3, 7000102214), (6, 3500051107), (7, 3000043806), (14, 1500021903), (21, 1000014602), (42, 500007301), (61, 344267322), (122, 172133661), (183, 114755774), (366, 57377887), (401, 52369842), (427, 49181046), (802, 26184921), (854, 24590523), (1203, 17456614), (1281, 16393682), (2406, 8728307), (2562, 8196841), (2807, 7481406), (5614, 3740703), (8421, 2493802), (16842, 1246901), (20441, 1027362), (24461, 858522), (40882, 513681), (48922, 429261), (61323, 342454), (73383, 286174), (122646, 171227), (143087, 146766)]