156988881

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11699}}^1$

素因数の和:11786

約数の個数: 32

約数和(自身を含む): 269568000

約数和(自身を除く): 112579119

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 4473, 11699, 13419, 35097, 81893, 105291, 245679, 315873, 737037, 830629, 2211111, 2491887, 5814403, 7475661, 17443209, 22426983, 52329627, 156988881]

約数ペア:

[(1, 156988881), (3, 52329627), (7, 22426983), (9, 17443209), (21, 7475661), (27, 5814403), (63, 2491887), (71, 2211111), (189, 830629), (213, 737037), (497, 315873), (639, 245679), (1491, 105291), (1917, 81893), (4473, 35097), (11699, 13419)]