20843732

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{331}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 45290112

約数和(自身を除く): 24446380

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 173, 182, 331, 346, 364, 662, 692, 1211, 1324, 2249, 2317, 2422, 4303, 4498, 4634, 4844, 8606, 8996, 9268, 15743, 17212, 30121, 31486, 57263, 60242, 62972, 114526, 120484, 229052, 400841, 744419, 801682, 1488838, 1603364, 2977676, 5210933, 10421866, 20843732]

約数ペア:

[(1, 20843732), (2, 10421866), (4, 5210933), (7, 2977676), (13, 1603364), (14, 1488838), (26, 801682), (28, 744419), (52, 400841), (91, 229052), (173, 120484), (182, 114526), (331, 62972), (346, 60242), (364, 57263), (662, 31486), (692, 30121), (1211, 17212), (1324, 15743), (2249, 9268), (2317, 8996), (2422, 8606), (4303, 4844), (4498, 4634)]