21178117004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1021}}^1\times {\mathrm{2393}}^1$

素因数の和:3626

約数の個数: 48

約数和(自身を含む): 40692982176

約数和(自身を除く): 19514865172

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 1021, 2042, 2167, 2393, 4084, 4334, 4786, 8668, 9572, 11231, 22462, 26323, 44924, 52646, 105292, 201137, 402274, 471421, 804548, 942842, 1885684, 2212507, 2443253, 4425014, 4886506, 5185631, 8850028, 9773012, 10371262, 20742524, 26875783, 53751566, 107503132, 481320841, 962641682, 1925283364, 5294529251, 10589058502, 21178117004]

約数ペア:

[(1, 21178117004), (2, 10589058502), (4, 5294529251), (11, 1925283364), (22, 962641682), (44, 481320841), (197, 107503132), (394, 53751566), (788, 26875783), (1021, 20742524), (2042, 10371262), (2167, 9773012), (2393, 8850028), (4084, 5185631), (4334, 4886506), (4786, 4425014), (8668, 2443253), (9572, 2212507), (11231, 1885684), (22462, 942842), (26323, 804548), (44924, 471421), (52646, 402274), (105292, 201137)]