21067844

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2287}}^1$

素因数の和:2352

約数の個数: 36

約数和(自身を含む): 43819776

約数和(自身を除く): 22751932

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2287, 2303, 4574, 4606, 9148, 9212, 16009, 32018, 64036, 107489, 112063, 214978, 224126, 429956, 448252, 752423, 1504846, 3009692, 5266961, 10533922, 21067844]

約数ペア:

[(1, 21067844), (2, 10533922), (4, 5266961), (7, 3009692), (14, 1504846), (28, 752423), (47, 448252), (49, 429956), (94, 224126), (98, 214978), (188, 112063), (196, 107489), (329, 64036), (658, 32018), (1316, 16009), (2287, 9212), (2303, 9148), (4574, 4606)]