21492736

素因数分解:

$2^{10}\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 44

約数和(自身を含む): 43560160

約数和(自身を除く): 22067424

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 151, 256, 278, 302, 512, 556, 604, 1024, 1112, 1208, 2224, 2416, 4448, 4832, 8896, 9664, 17792, 19328, 20989, 35584, 38656, 41978, 71168, 77312, 83956, 142336, 154624, 167912, 335824, 671648, 1343296, 2686592, 5373184, 10746368, 21492736]

約数ペア:

[(1, 21492736), (2, 10746368), (4, 5373184), (8, 2686592), (16, 1343296), (32, 671648), (64, 335824), (128, 167912), (139, 154624), (151, 142336), (256, 83956), (278, 77312), (302, 71168), (512, 41978), (556, 38656), (604, 35584), (1024, 20989), (1112, 19328), (1208, 17792), (2224, 9664), (2416, 8896), (4448, 4832)]