21821536

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1319}}^1$

素因数の和:1387

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 26078624

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 88, 94, 176, 188, 352, 376, 517, 752, 1034, 1319, 1504, 2068, 2638, 4136, 5276, 8272, 10552, 14509, 16544, 21104, 29018, 42208, 58036, 61993, 116072, 123986, 232144, 247972, 464288, 495944, 681923, 991888, 1363846, 1983776, 2727692, 5455384, 10910768, 21821536]

約数ペア:

[(1, 21821536), (2, 10910768), (4, 5455384), (8, 2727692), (11, 1983776), (16, 1363846), (22, 991888), (32, 681923), (44, 495944), (47, 464288), (88, 247972), (94, 232144), (176, 123986), (188, 116072), (352, 61993), (376, 58036), (517, 42208), (752, 29018), (1034, 21104), (1319, 16544), (1504, 14509), (2068, 10552), (2638, 8272), (4136, 5276)]