20842316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21614644

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 107, 209, 214, 233, 418, 428, 466, 836, 932, 1177, 2033, 2354, 2563, 4066, 4427, 4708, 5126, 8132, 8854, 10252, 17708, 22363, 24931, 44726, 48697, 49862, 89452, 97394, 99724, 194788, 274241, 473689, 548482, 947378, 1096964, 1894756, 5210579, 10421158, 20842316]

約数ペア:

[(1, 20842316), (2, 10421158), (4, 5210579), (11, 1894756), (19, 1096964), (22, 947378), (38, 548482), (44, 473689), (76, 274241), (107, 194788), (209, 99724), (214, 97394), (233, 89452), (418, 49862), (428, 48697), (466, 44726), (836, 24931), (932, 22363), (1177, 17708), (2033, 10252), (2354, 8854), (2563, 8132), (4066, 5126), (4427, 4708)]