21722013

素因数分解:

$3^6\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:460

約数の個数: 28

約数和(自身を含む): 33052320

約数和(自身を除く): 11330307

約数列:

[1, 3, 9, 27, 81, 83, 243, 249, 359, 729, 747, 1077, 2241, 3231, 6723, 9693, 20169, 29079, 29797, 60507, 87237, 89391, 261711, 268173, 804519, 2413557, 7240671, 21722013]

約数ペア:

[(1, 21722013), (3, 7240671), (9, 2413557), (27, 804519), (81, 268173), (83, 261711), (243, 89391), (249, 87237), (359, 60507), (729, 29797), (747, 29079), (1077, 20169), (2241, 9693), (3231, 6723)]