21290147285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{4373}}^1$

素因数の和:4574

約数の個数: 64

約数和(自身を含む): 30474952704

約数和(自身を除く): 9184805419

約数列:

[1, 5, 11, 17, 41, 55, 85, 127, 187, 205, 451, 635, 697, 935, 1397, 2159, 2255, 3485, 4373, 5207, 6985, 7667, 10795, 21865, 23749, 26035, 38335, 48103, 57277, 74341, 88519, 118745, 179293, 240515, 286385, 371705, 442595, 555371, 817751, 896465, 973709, 1972223, 2776855, 3047981, 4088755, 4868545, 6109081, 9441307, 9861115, 15239905, 22770211, 30545405, 33527791, 47206535, 103854377, 113851055, 167638955, 250472321, 387093587, 519271885, 1252361605, 1935467935, 4258029457, 21290147285]

約数ペア:

[(1, 21290147285), (5, 4258029457), (11, 1935467935), (17, 1252361605), (41, 519271885), (55, 387093587), (85, 250472321), (127, 167638955), (187, 113851055), (205, 103854377), (451, 47206535), (635, 33527791), (697, 30545405), (935, 22770211), (1397, 15239905), (2159, 9861115), (2255, 9441307), (3485, 6109081), (4373, 4868545), (5207, 4088755), (6985, 3047981), (7667, 2776855), (10795, 1972223), (21865, 973709), (23749, 896465), (26035, 817751), (38335, 555371), (48103, 442595), (57277, 371705), (74341, 286385), (88519, 240515), (118745, 179293)]