215899983

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 389188800

約数和(自身を除く): 173288817

約数列:

[1, 3, 9, 13, 17, 19, 29, 39, 51, 57, 87, 117, 153, 171, 197, 221, 247, 261, 323, 377, 493, 551, 591, 663, 741, 969, 1131, 1479, 1653, 1773, 1989, 2223, 2561, 2907, 3349, 3393, 3743, 4199, 4437, 4959, 5713, 6409, 7163, 7683, 9367, 10047, 11229, 12597, 17139, 19227, 21489, 23049, 28101, 30141, 33687, 37791, 43537, 48659, 51417, 57681, 63631, 64467, 74269, 84303, 97121, 108547, 121771, 130611, 145977, 190893, 222807, 291363, 325641, 365313, 391833, 437931, 572679, 668421, 827203, 874089, 976923, 1095939, 1262573, 1411111, 1845299, 2481609, 3787719, 4233333, 5535897, 7444827, 11363157, 12699999, 16607691, 23988887, 71966661, 215899983]

約数ペア:

[(1, 215899983), (3, 71966661), (9, 23988887), (13, 16607691), (17, 12699999), (19, 11363157), (29, 7444827), (39, 5535897), (51, 4233333), (57, 3787719), (87, 2481609), (117, 1845299), (153, 1411111), (171, 1262573), (197, 1095939), (221, 976923), (247, 874089), (261, 827203), (323, 668421), (377, 572679), (493, 437931), (551, 391833), (591, 365313), (663, 325641), (741, 291363), (969, 222807), (1131, 190893), (1479, 145977), (1653, 130611), (1773, 121771), (1989, 108547), (2223, 97121), (2561, 84303), (2907, 74269), (3349, 64467), (3393, 63631), (3743, 57681), (4199, 51417), (4437, 48659), (4959, 43537), (5713, 37791), (6409, 33687), (7163, 30141), (7683, 28101), (9367, 23049), (10047, 21489), (11229, 19227), (12597, 17139)]