21615990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2113}}^1$

素因数の和:2165

約数の個数: 64

約数和(自身を含む): 58447872

約数和(自身を除く): 36831882

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 93, 110, 155, 165, 186, 310, 330, 341, 465, 682, 930, 1023, 1705, 2046, 2113, 3410, 4226, 5115, 6339, 10230, 10565, 12678, 21130, 23243, 31695, 46486, 63390, 65503, 69729, 116215, 131006, 139458, 196509, 232430, 327515, 348645, 393018, 655030, 697290, 720533, 982545, 1441066, 1965090, 2161599, 3602665, 4323198, 7205330, 10807995, 21615990]

約数ペア:

[(1, 21615990), (2, 10807995), (3, 7205330), (5, 4323198), (6, 3602665), (10, 2161599), (11, 1965090), (15, 1441066), (22, 982545), (30, 720533), (31, 697290), (33, 655030), (55, 393018), (62, 348645), (66, 327515), (93, 232430), (110, 196509), (155, 139458), (165, 131006), (186, 116215), (310, 69729), (330, 65503), (341, 63390), (465, 46486), (682, 31695), (930, 23243), (1023, 21130), (1705, 12678), (2046, 10565), (2113, 10230), (3410, 6339), (4226, 5115)]