19499697

素因数分解:

$3^4\times 7^2\times {\mathrm{17}}^3$

素因数の和:77

約数の個数: 60

約数和(自身を含む): 36002340

約数和(自身を除く): 16502643

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 119, 147, 153, 189, 289, 357, 441, 459, 567, 833, 867, 1071, 1323, 1377, 2023, 2499, 2601, 3213, 3969, 4913, 6069, 7497, 7803, 9639, 14161, 14739, 18207, 22491, 23409, 34391, 42483, 44217, 54621, 67473, 103173, 127449, 132651, 163863, 240737, 309519, 382347, 397953, 722211, 928557, 1147041, 2166633, 2785671, 6499899, 19499697]

約数ペア:

[(1, 19499697), (3, 6499899), (7, 2785671), (9, 2166633), (17, 1147041), (21, 928557), (27, 722211), (49, 397953), (51, 382347), (63, 309519), (81, 240737), (119, 163863), (147, 132651), (153, 127449), (189, 103173), (289, 67473), (357, 54621), (441, 44217), (459, 42483), (567, 34391), (833, 23409), (867, 22491), (1071, 18207), (1323, 14739), (1377, 14161), (2023, 9639), (2499, 7803), (2601, 7497), (3213, 6069), (3969, 4913)]