21538212

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1069}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 53208960

約数和(自身を除く): 31670748

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 73, 92, 138, 146, 219, 276, 292, 438, 876, 1069, 1679, 2138, 3207, 3358, 4276, 5037, 6414, 6716, 10074, 12828, 20148, 24587, 49174, 73761, 78037, 98348, 147522, 156074, 234111, 295044, 312148, 468222, 936444, 1794851, 3589702, 5384553, 7179404, 10769106, 21538212]

約数ペア:

[(1, 21538212), (2, 10769106), (3, 7179404), (4, 5384553), (6, 3589702), (12, 1794851), (23, 936444), (46, 468222), (69, 312148), (73, 295044), (92, 234111), (138, 156074), (146, 147522), (219, 98348), (276, 78037), (292, 73761), (438, 49174), (876, 24587), (1069, 20148), (1679, 12828), (2138, 10074), (3207, 6716), (3358, 6414), (4276, 5037)]