260665209

素因数分解:

$3^4\times 7^1\times {\mathrm{379}}^1\times {\mathrm{1213}}^1$

素因数の和:1611

約数の個数: 40

約数和(自身を含む): 446557760

約数和(自身を除く): 185892551

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 379, 567, 1137, 1213, 2653, 3411, 3639, 7959, 8491, 10233, 10917, 23877, 25473, 30699, 32751, 71631, 76419, 98253, 214893, 229257, 459727, 687771, 1379181, 3218089, 4137543, 9654267, 12412629, 28962801, 37237887, 86888403, 260665209]

約数ペア:

[(1, 260665209), (3, 86888403), (7, 37237887), (9, 28962801), (21, 12412629), (27, 9654267), (63, 4137543), (81, 3218089), (189, 1379181), (379, 687771), (567, 459727), (1137, 229257), (1213, 214893), (2653, 98253), (3411, 76419), (3639, 71631), (7959, 32751), (8491, 30699), (10233, 25473), (10917, 23877)]