19993194

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2051

約数の個数: 48

約数和(自身を含む): 47759712

約数和(自身を除く): 27766518

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 234, 258, 387, 559, 774, 1118, 1677, 1987, 3354, 3974, 5031, 5961, 10062, 11922, 17883, 25831, 35766, 51662, 77493, 85441, 154986, 170882, 232479, 256323, 464958, 512646, 768969, 1110733, 1537938, 2221466, 3332199, 6664398, 9996597, 19993194]

約数ペア:

[(1, 19993194), (2, 9996597), (3, 6664398), (6, 3332199), (9, 2221466), (13, 1537938), (18, 1110733), (26, 768969), (39, 512646), (43, 464958), (78, 256323), (86, 232479), (117, 170882), (129, 154986), (234, 85441), (258, 77493), (387, 51662), (559, 35766), (774, 25831), (1118, 17883), (1677, 11922), (1987, 10062), (3354, 5961), (3974, 5031)]