21265146

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 54639360

約数和(自身を除く): 33374214

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 101, 126, 189, 202, 303, 378, 557, 606, 707, 909, 1114, 1414, 1671, 1818, 2121, 2727, 3342, 3899, 4242, 5013, 5454, 6363, 7798, 10026, 11697, 12726, 15039, 19089, 23394, 30078, 35091, 38178, 56257, 70182, 105273, 112514, 168771, 210546, 337542, 393799, 506313, 787598, 1012626, 1181397, 1518939, 2362794, 3037878, 3544191, 7088382, 10632573, 21265146]

約数ペア:

[(1, 21265146), (2, 10632573), (3, 7088382), (6, 3544191), (7, 3037878), (9, 2362794), (14, 1518939), (18, 1181397), (21, 1012626), (27, 787598), (42, 506313), (54, 393799), (63, 337542), (101, 210546), (126, 168771), (189, 112514), (202, 105273), (303, 70182), (378, 56257), (557, 38178), (606, 35091), (707, 30078), (909, 23394), (1114, 19089), (1414, 15039), (1671, 12726), (1818, 11697), (2121, 10026), (2727, 7798), (3342, 6363), (3899, 5454), (4242, 5013)]