21600999

素因数分解:

$3^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 18073881

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 83, 119, 153, 189, 243, 249, 357, 459, 567, 581, 729, 747, 1071, 1377, 1411, 1701, 1743, 2187, 2241, 3213, 4131, 4233, 5103, 5229, 6723, 9639, 9877, 12393, 12699, 15309, 15687, 20169, 28917, 29631, 37179, 38097, 47061, 60507, 86751, 88893, 114291, 141183, 181521, 260253, 266679, 342873, 423549, 800037, 1028619, 1270647, 2400111, 3085857, 7200333, 21600999]

約数ペア:

[(1, 21600999), (3, 7200333), (7, 3085857), (9, 2400111), (17, 1270647), (21, 1028619), (27, 800037), (51, 423549), (63, 342873), (81, 266679), (83, 260253), (119, 181521), (153, 141183), (189, 114291), (243, 88893), (249, 86751), (357, 60507), (459, 47061), (567, 38097), (581, 37179), (729, 29631), (747, 28917), (1071, 20169), (1377, 15687), (1411, 15309), (1701, 12699), (1743, 12393), (2187, 9877), (2241, 9639), (3213, 6723), (4131, 5229), (4233, 5103)]