21430782

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:529

約数の個数: 48

約数和(自身を含む): 48353760

約数和(自身を除く): 26922978

約数列:

[1, 2, 3, 6, 9, 18, 41, 71, 82, 123, 142, 213, 246, 369, 409, 426, 639, 738, 818, 1227, 1278, 2454, 2911, 3681, 5822, 7362, 8733, 16769, 17466, 26199, 29039, 33538, 50307, 52398, 58078, 87117, 100614, 150921, 174234, 261351, 301842, 522702, 1190599, 2381198, 3571797, 7143594, 10715391, 21430782]

約数ペア:

[(1, 21430782), (2, 10715391), (3, 7143594), (6, 3571797), (9, 2381198), (18, 1190599), (41, 522702), (71, 301842), (82, 261351), (123, 174234), (142, 150921), (213, 100614), (246, 87117), (369, 58078), (409, 52398), (426, 50307), (639, 33538), (738, 29039), (818, 26199), (1227, 17466), (1278, 16769), (2454, 8733), (2911, 7362), (3681, 5822)]