21981744

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{6637}}^1$

素因数の和:6674

約数の個数: 60

約数和(自身を含む): 64202736

約数和(自身を除く): 42220992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 72, 92, 138, 144, 184, 207, 276, 368, 414, 552, 828, 1104, 1656, 3312, 6637, 13274, 19911, 26548, 39822, 53096, 59733, 79644, 106192, 119466, 152651, 159288, 238932, 305302, 318576, 457953, 477864, 610604, 915906, 955728, 1221208, 1373859, 1831812, 2442416, 2747718, 3663624, 5495436, 7327248, 10990872, 21981744]

約数ペア:

[(1, 21981744), (2, 10990872), (3, 7327248), (4, 5495436), (6, 3663624), (8, 2747718), (9, 2442416), (12, 1831812), (16, 1373859), (18, 1221208), (23, 955728), (24, 915906), (36, 610604), (46, 477864), (48, 457953), (69, 318576), (72, 305302), (92, 238932), (138, 159288), (144, 152651), (184, 119466), (207, 106192), (276, 79644), (368, 59733), (414, 53096), (552, 39822), (828, 26548), (1104, 19911), (1656, 13274), (3312, 6637)]