20722768

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6197}}^1$

素因数の和:6235

約数の個数: 40

約数和(自身を含む): 46113120

約数和(自身を除く): 25390352

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6197, 12394, 24788, 49576, 68167, 99152, 117743, 136334, 235486, 272668, 470972, 545336, 941944, 1090672, 1295173, 1883888, 2590346, 5180692, 10361384, 20722768]

約数ペア:

[(1, 20722768), (2, 10361384), (4, 5180692), (8, 2590346), (11, 1883888), (16, 1295173), (19, 1090672), (22, 941944), (38, 545336), (44, 470972), (76, 272668), (88, 235486), (152, 136334), (176, 117743), (209, 99152), (304, 68167), (418, 49576), (836, 24788), (1672, 12394), (3344, 6197)]