21730695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4813}}^1$

素因数の和:4871

約数の個数: 32

約数和(自身を含む): 40668672

約数和(自身を除く): 18937977

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 4813, 14439, 24065, 33691, 72195, 101073, 168455, 206959, 505365, 620877, 1034795, 1448713, 3104385, 4346139, 7243565, 21730695]

約数ペア:

[(1, 21730695), (3, 7243565), (5, 4346139), (7, 3104385), (15, 1448713), (21, 1034795), (35, 620877), (43, 505365), (105, 206959), (129, 168455), (215, 101073), (301, 72195), (645, 33691), (903, 24065), (1505, 14439), (4515, 4813)]