21099815667

素因数分解:

$3^2\times 7^2\times {\mathrm{421}}^1\times {\mathrm{113647}}^1$

素因数の和:114088

約数の個数: 36

約数和(自身を含む): 35537956896

約数和(自身を除く): 14438141229

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 421, 441, 1263, 2947, 3789, 8841, 20629, 26523, 61887, 113647, 185661, 340941, 795529, 1022823, 2386587, 5568703, 7159761, 16706109, 47845387, 50118327, 143536161, 334917709, 430608483, 1004753127, 2344423963, 3014259381, 7033271889, 21099815667]

約数ペア:

[(1, 21099815667), (3, 7033271889), (7, 3014259381), (9, 2344423963), (21, 1004753127), (49, 430608483), (63, 334917709), (147, 143536161), (421, 50118327), (441, 47845387), (1263, 16706109), (2947, 7159761), (3789, 5568703), (8841, 2386587), (20629, 1022823), (26523, 795529), (61887, 340941), (113647, 185661)]