18118728

素因数分解:

$2^3\times 3^4\times {\mathrm{27961}}^1$

素因数の和:27979

約数の個数: 40

約数和(自身を含む): 50751030

約数和(自身を除く): 32632302

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 27961, 55922, 83883, 111844, 167766, 223688, 251649, 335532, 503298, 671064, 754947, 1006596, 1509894, 2013192, 2264841, 3019788, 4529682, 6039576, 9059364, 18118728]

約数ペア:

[(1, 18118728), (2, 9059364), (3, 6039576), (4, 4529682), (6, 3019788), (8, 2264841), (9, 2013192), (12, 1509894), (18, 1006596), (24, 754947), (27, 671064), (36, 503298), (54, 335532), (72, 251649), (81, 223688), (108, 167766), (162, 111844), (216, 83883), (324, 55922), (648, 27961)]