201785787

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{271}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 342171648

約数和(自身を除く): 140385861

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 223, 271, 371, 477, 669, 813, 1113, 1561, 1897, 2007, 2439, 3339, 4683, 5691, 11819, 14049, 14363, 17073, 35457, 43089, 60433, 82733, 100541, 106371, 129267, 181299, 248199, 301623, 423031, 543897, 744597, 904869, 1269093, 3202949, 3807279, 9608847, 22420643, 28826541, 67261929, 201785787]

約数ペア:

[(1, 201785787), (3, 67261929), (7, 28826541), (9, 22420643), (21, 9608847), (53, 3807279), (63, 3202949), (159, 1269093), (223, 904869), (271, 744597), (371, 543897), (477, 423031), (669, 301623), (813, 248199), (1113, 181299), (1561, 129267), (1897, 106371), (2007, 100541), (2439, 82733), (3339, 60433), (4683, 43089), (5691, 35457), (11819, 17073), (14049, 14363)]