201997201

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 250822656

約数和(自身を除く): 48825455

約数列:

[1, 7, 23, 41, 71, 161, 287, 431, 497, 943, 1633, 2911, 3017, 6601, 9913, 11431, 17671, 20377, 30601, 66953, 69391, 123697, 214207, 406433, 468671, 703823, 1254641, 2845031, 4926761, 8782487, 28856743, 201997201]

約数ペア:

[(1, 201997201), (7, 28856743), (23, 8782487), (41, 4926761), (71, 2845031), (161, 1254641), (287, 703823), (431, 468671), (497, 406433), (943, 214207), (1633, 123697), (2911, 69391), (3017, 66953), (6601, 30601), (9913, 20377), (11431, 17671)]