21388895865

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{103171}}^1$

素因数の和:103470

約数の個数: 48

約数和(自身を含む): 39400148736

約数和(自身を除く): 18011252871

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 271, 765, 813, 1355, 2439, 4065, 4607, 12195, 13821, 23035, 41463, 69105, 103171, 207315, 309513, 515855, 928539, 1547565, 1753907, 4642695, 5261721, 8769535, 15785163, 26308605, 27959341, 78925815, 83878023, 139796705, 251634069, 419390115, 475308797, 1258170345, 1425926391, 2376543985, 4277779173, 7129631955, 21388895865]

約数ペア:

[(1, 21388895865), (3, 7129631955), (5, 4277779173), (9, 2376543985), (15, 1425926391), (17, 1258170345), (45, 475308797), (51, 419390115), (85, 251634069), (153, 139796705), (255, 83878023), (271, 78925815), (765, 27959341), (813, 26308605), (1355, 15785163), (2439, 8769535), (4065, 5261721), (4607, 4642695), (12195, 1753907), (13821, 1547565), (23035, 928539), (41463, 515855), (69105, 309513), (103171, 207315)]