21255248

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1879}}^1$

素因数の和:1995

約数の個数: 40

約数和(自身を含む): 47556480

約数和(自身を除く): 26301232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 1879, 2828, 3758, 5656, 7516, 11312, 13153, 15032, 26306, 30064, 52612, 105224, 189779, 210448, 379558, 759116, 1328453, 1518232, 2656906, 3036464, 5313812, 10627624, 21255248]

約数ペア:

[(1, 21255248), (2, 10627624), (4, 5313812), (7, 3036464), (8, 2656906), (14, 1518232), (16, 1328453), (28, 759116), (56, 379558), (101, 210448), (112, 189779), (202, 105224), (404, 52612), (707, 30064), (808, 26306), (1414, 15032), (1616, 13153), (1879, 11312), (2828, 7516), (3758, 5656)]