21966021

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1093}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 40959360

約数和(自身を除く): 18993339

約数列:

[1, 3, 7, 9, 11, 21, 29, 33, 63, 77, 87, 99, 203, 231, 261, 319, 609, 693, 957, 1093, 1827, 2233, 2871, 3279, 6699, 7651, 9837, 12023, 20097, 22953, 31697, 36069, 68859, 84161, 95091, 108207, 221879, 252483, 285273, 348667, 665637, 757449, 1046001, 1996911, 2440669, 3138003, 7322007, 21966021]

約数ペア:

[(1, 21966021), (3, 7322007), (7, 3138003), (9, 2440669), (11, 1996911), (21, 1046001), (29, 757449), (33, 665637), (63, 348667), (77, 285273), (87, 252483), (99, 221879), (203, 108207), (231, 95091), (261, 84161), (319, 68859), (609, 36069), (693, 31697), (957, 22953), (1093, 20097), (1827, 12023), (2233, 9837), (2871, 7651), (3279, 6699)]