21664864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2783

約数の個数: 48

約数和(自身を含む): 48368880

約数和(自身を除く): 26704016

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2741, 3952, 5482, 7904, 10964, 21928, 35633, 43856, 52079, 71266, 87712, 104158, 142532, 208316, 285064, 416632, 570128, 677027, 833264, 1140256, 1354054, 1666528, 2708108, 5416216, 10832432, 21664864]

約数ペア:

[(1, 21664864), (2, 10832432), (4, 5416216), (8, 2708108), (13, 1666528), (16, 1354054), (19, 1140256), (26, 833264), (32, 677027), (38, 570128), (52, 416632), (76, 285064), (104, 208316), (152, 142532), (208, 104158), (247, 87712), (304, 71266), (416, 52079), (494, 43856), (608, 35633), (988, 21928), (1976, 10964), (2741, 7904), (3952, 5482)]