21729682

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{1213}}^1$

素因数の和:1294

約数の個数: 24

約数和(自身を含む): 35990244

約数和(自身を除く): 14260562

約数列:

[1, 2, 13, 26, 53, 106, 169, 338, 689, 1213, 1378, 2426, 8957, 15769, 17914, 31538, 64289, 128578, 204997, 409994, 835757, 1671514, 10864841, 21729682]

約数ペア:

[(1, 21729682), (2, 10864841), (13, 1671514), (26, 835757), (53, 409994), (106, 204997), (169, 128578), (338, 64289), (689, 31538), (1213, 17914), (1378, 15769), (2426, 8957)]