20687520964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2161}}^1\times {\mathrm{2243}}^1$

素因数の和:4516

約数の個数: 48

約数和(自身を含む): 39937778496

約数和(自身を除く): 19250257532

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 2161, 2243, 4268, 4322, 4486, 8644, 8972, 23771, 24673, 47542, 49346, 95084, 98692, 209617, 217571, 419234, 435142, 838468, 870284, 2305787, 2393281, 4611574, 4786562, 4847123, 9223148, 9573124, 9694246, 19388492, 53318353, 106636706, 213273412, 470170931, 940341862, 1880683724, 5171880241, 10343760482, 20687520964]

約数ペア:

[(1, 20687520964), (2, 10343760482), (4, 5171880241), (11, 1880683724), (22, 940341862), (44, 470170931), (97, 213273412), (194, 106636706), (388, 53318353), (1067, 19388492), (2134, 9694246), (2161, 9573124), (2243, 9223148), (4268, 4847123), (4322, 4786562), (4486, 4611574), (8644, 2393281), (8972, 2305787), (23771, 870284), (24673, 838468), (47542, 435142), (49346, 419234), (95084, 217571), (98692, 209617)]