19982817

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1069}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 30268160

約数和(自身を除く): 10285343

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 1069, 2077, 3207, 6231, 9621, 18693, 33139, 71623, 99417, 214869, 298251, 644607, 2220313, 6660939, 19982817]

約数ペア:

[(1, 19982817), (3, 6660939), (9, 2220313), (31, 644607), (67, 298251), (93, 214869), (201, 99417), (279, 71623), (603, 33139), (1069, 18693), (2077, 9621), (3207, 6231)]