21247110

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1543}}^1$

素因数の和:1579

約数の個数: 80

約数和(自身を含む): 60530976

約数和(自身を除く): 39283866

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 1543, 2295, 2754, 3086, 4590, 4629, 6885, 7715, 9258, 13770, 13887, 15430, 23145, 26231, 27774, 41661, 46290, 52462, 69435, 78693, 83322, 124983, 131155, 138870, 157386, 208305, 236079, 249966, 262310, 393465, 416610, 472158, 624915, 708237, 786930, 1180395, 1249830, 1416474, 2124711, 2360790, 3541185, 4249422, 7082370, 10623555, 21247110]

約数ペア:

[(1, 21247110), (2, 10623555), (3, 7082370), (5, 4249422), (6, 3541185), (9, 2360790), (10, 2124711), (15, 1416474), (17, 1249830), (18, 1180395), (27, 786930), (30, 708237), (34, 624915), (45, 472158), (51, 416610), (54, 393465), (81, 262310), (85, 249966), (90, 236079), (102, 208305), (135, 157386), (153, 138870), (162, 131155), (170, 124983), (255, 83322), (270, 78693), (306, 69435), (405, 52462), (459, 46290), (510, 41661), (765, 27774), (810, 26231), (918, 23145), (1377, 15430), (1530, 13887), (1543, 13770), (2295, 9258), (2754, 7715), (3086, 6885), (4590, 4629)]