160821921

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 251714304

約数和(自身を除く): 90892383

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 169, 221, 397, 507, 611, 663, 799, 1191, 1833, 2397, 2873, 5161, 6749, 7943, 8619, 10387, 15483, 18659, 20247, 23829, 31161, 55977, 67093, 87737, 135031, 201279, 242567, 263211, 317203, 405093, 727701, 951609, 1140581, 3153371, 3421743, 4123639, 9460113, 12370917, 53607307, 160821921]

約数ペア:

[(1, 160821921), (3, 53607307), (13, 12370917), (17, 9460113), (39, 4123639), (47, 3421743), (51, 3153371), (141, 1140581), (169, 951609), (221, 727701), (397, 405093), (507, 317203), (611, 263211), (663, 242567), (799, 201279), (1191, 135031), (1833, 87737), (2397, 67093), (2873, 55977), (5161, 31161), (6749, 23829), (7943, 20247), (8619, 18659), (10387, 15483)]