201969719

素因数分解:

$7^5\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 240707808

約数和(自身を除く): 38738089

約数列:

[1, 7, 49, 61, 197, 343, 427, 1379, 2401, 2989, 9653, 12017, 16807, 20923, 67571, 84119, 146461, 472997, 588833, 1025227, 3310979, 4121831, 28852817, 201969719]

約数ペア:

[(1, 201969719), (7, 28852817), (49, 4121831), (61, 3310979), (197, 1025227), (343, 588833), (427, 472997), (1379, 146461), (2401, 84119), (2989, 67571), (9653, 20923), (12017, 16807)]