18553808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12743}}^1$

素因数の和:12771

約数の個数: 40

約数和(自身を含む): 44247168

約数和(自身を除く): 25693360

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12743, 25486, 50972, 89201, 101944, 165659, 178402, 203888, 331318, 356804, 662636, 713608, 1159613, 1325272, 1427216, 2319226, 2650544, 4638452, 9276904, 18553808]

約数ペア:

[(1, 18553808), (2, 9276904), (4, 4638452), (7, 2650544), (8, 2319226), (13, 1427216), (14, 1325272), (16, 1159613), (26, 713608), (28, 662636), (52, 356804), (56, 331318), (91, 203888), (104, 178402), (112, 165659), (182, 101944), (208, 89201), (364, 50972), (728, 25486), (1456, 12743)]