21564780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3359}}^1$

素因数の和:3478

約数の個数: 48

約数和(自身を含む): 60963840

約数和(自身を除く): 39399060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 428, 535, 642, 1070, 1284, 1605, 2140, 3210, 3359, 6420, 6718, 10077, 13436, 16795, 20154, 33590, 40308, 50385, 67180, 100770, 201540, 359413, 718826, 1078239, 1437652, 1797065, 2156478, 3594130, 4312956, 5391195, 7188260, 10782390, 21564780]

約数ペア:

[(1, 21564780), (2, 10782390), (3, 7188260), (4, 5391195), (5, 4312956), (6, 3594130), (10, 2156478), (12, 1797065), (15, 1437652), (20, 1078239), (30, 718826), (60, 359413), (107, 201540), (214, 100770), (321, 67180), (428, 50385), (535, 40308), (642, 33590), (1070, 20154), (1284, 16795), (1605, 13436), (2140, 10077), (3210, 6718), (3359, 6420)]