21070778876

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{43597}}^1$

素因数の和:44070

約数の個数: 48

約数和(自身を含む): 43272933312

約数和(自身を除く): 22202154436

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 421, 574, 842, 1148, 1684, 2947, 5894, 11788, 17261, 34522, 43597, 69044, 87194, 120827, 174388, 241654, 305179, 483308, 610358, 1220716, 1787477, 3574954, 7149908, 12512339, 18354337, 25024678, 36708674, 50049356, 73417348, 128480359, 256960718, 513921436, 752527817, 1505055634, 3010111268, 5267694719, 10535389438, 21070778876]

約数ペア:

[(1, 21070778876), (2, 10535389438), (4, 5267694719), (7, 3010111268), (14, 1505055634), (28, 752527817), (41, 513921436), (82, 256960718), (164, 128480359), (287, 73417348), (421, 50049356), (574, 36708674), (842, 25024678), (1148, 18354337), (1684, 12512339), (2947, 7149908), (5894, 3574954), (11788, 1787477), (17261, 1220716), (34522, 610358), (43597, 483308), (69044, 305179), (87194, 241654), (120827, 174388)]