18377104

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1079

約数の個数: 40

約数和(自身を含む): 38132480

約数和(自身を除く): 19755376

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 991, 1159, 1982, 2318, 3964, 4636, 7928, 9272, 15856, 18544, 18829, 37658, 60451, 75316, 120902, 150632, 241804, 301264, 483608, 967216, 1148569, 2297138, 4594276, 9188552, 18377104]

約数ペア:

[(1, 18377104), (2, 9188552), (4, 4594276), (8, 2297138), (16, 1148569), (19, 967216), (38, 483608), (61, 301264), (76, 241804), (122, 150632), (152, 120902), (244, 75316), (304, 60451), (488, 37658), (976, 18829), (991, 18544), (1159, 15856), (1982, 9272), (2318, 7928), (3964, 4636)]