20707948

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^2\times {\mathrm{97}}^1$

素因数の和:226

約数の個数: 36

約数和(自身を含む): 39280360

約数和(自身を除く): 18572412

約数列:

[1, 2, 4, 19, 38, 53, 76, 97, 106, 194, 212, 388, 1007, 1843, 2014, 2809, 3686, 4028, 5141, 5618, 7372, 10282, 11236, 20564, 53371, 97679, 106742, 195358, 213484, 272473, 390716, 544946, 1089892, 5176987, 10353974, 20707948]

約数ペア:

[(1, 20707948), (2, 10353974), (4, 5176987), (19, 1089892), (38, 544946), (53, 390716), (76, 272473), (97, 213484), (106, 195358), (194, 106742), (212, 97679), (388, 53371), (1007, 20564), (1843, 11236), (2014, 10282), (2809, 7372), (3686, 5618), (4028, 5141)]