20797834526

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 36488724480

約数和(自身を除く): 15690889954

約数列:

[1, 2, 7, 14, 89, 178, 191, 281, 311, 382, 562, 622, 623, 1246, 1337, 1967, 2177, 2674, 3934, 4354, 16999, 25009, 27679, 33998, 50018, 53671, 55358, 59401, 87391, 107342, 118802, 118993, 174782, 175063, 193753, 237986, 350126, 375697, 387506, 415807, 611737, 751394, 831614, 1223474, 4776719, 5286689, 7777799, 9553438, 10573378, 15555598, 16691681, 33383362, 33437033, 37006823, 54444593, 66874066, 74013646, 108889186, 116841767, 233683534, 1485559609, 2971119218, 10398917263, 20797834526]

約数ペア:

[(1, 20797834526), (2, 10398917263), (7, 2971119218), (14, 1485559609), (89, 233683534), (178, 116841767), (191, 108889186), (281, 74013646), (311, 66874066), (382, 54444593), (562, 37006823), (622, 33437033), (623, 33383362), (1246, 16691681), (1337, 15555598), (1967, 10573378), (2177, 9553438), (2674, 7777799), (3934, 5286689), (4354, 4776719), (16999, 1223474), (25009, 831614), (27679, 751394), (33998, 611737), (50018, 415807), (53671, 387506), (55358, 375697), (59401, 350126), (87391, 237986), (107342, 193753), (118802, 175063), (118993, 174782)]