18752816

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:429

約数の個数: 40

約数和(自身を含む): 37695504

約数和(自身を除く): 18942688

約数列:

[1, 2, 4, 8, 16, 43, 86, 97, 172, 194, 281, 344, 388, 562, 688, 776, 1124, 1552, 2248, 4171, 4496, 8342, 12083, 16684, 24166, 27257, 33368, 48332, 54514, 66736, 96664, 109028, 193328, 218056, 436112, 1172051, 2344102, 4688204, 9376408, 18752816]

約数ペア:

[(1, 18752816), (2, 9376408), (4, 4688204), (8, 2344102), (16, 1172051), (43, 436112), (86, 218056), (97, 193328), (172, 109028), (194, 96664), (281, 66736), (344, 54514), (388, 48332), (562, 33368), (688, 27257), (776, 24166), (1124, 16684), (1552, 12083), (2248, 8342), (4171, 4496)]