19867113

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{947}}^1$

素因数の和:1003

約数の個数: 40

約数和(自身を含む): 34871232

約数和(自身を除く): 15004119

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 947, 999, 2331, 2841, 2997, 6629, 6993, 8523, 19887, 20979, 25569, 35039, 59661, 76707, 105117, 178983, 245273, 315351, 536949, 735819, 946053, 2207457, 2838159, 6622371, 19867113]

約数ペア:

[(1, 19867113), (3, 6622371), (7, 2838159), (9, 2207457), (21, 946053), (27, 735819), (37, 536949), (63, 315351), (81, 245273), (111, 178983), (189, 105117), (259, 76707), (333, 59661), (567, 35039), (777, 25569), (947, 20979), (999, 19887), (2331, 8523), (2841, 6993), (2997, 6629)]