16800777

素因数分解:

$3^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 31370976

約数和(自身を除く): 14570199

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 83, 119, 147, 153, 189, 243, 249, 357, 441, 459, 567, 581, 747, 833, 1071, 1323, 1377, 1411, 1701, 1743, 2241, 2499, 3213, 3969, 4067, 4131, 4233, 5229, 6723, 7497, 9639, 9877, 11907, 12201, 12699, 15687, 20169, 22491, 28917, 29631, 36603, 38097, 47061, 67473, 69139, 88893, 109809, 114291, 141183, 202419, 207417, 266679, 329427, 342873, 622251, 800037, 988281, 1866753, 2400111, 5600259, 16800777]

約数ペア:

[(1, 16800777), (3, 5600259), (7, 2400111), (9, 1866753), (17, 988281), (21, 800037), (27, 622251), (49, 342873), (51, 329427), (63, 266679), (81, 207417), (83, 202419), (119, 141183), (147, 114291), (153, 109809), (189, 88893), (243, 69139), (249, 67473), (357, 47061), (441, 38097), (459, 36603), (567, 29631), (581, 28917), (747, 22491), (833, 20169), (1071, 15687), (1323, 12699), (1377, 12201), (1411, 11907), (1701, 9877), (1743, 9639), (2241, 7497), (2499, 6723), (3213, 5229), (3969, 4233), (4067, 4131)]