20777744

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{523}}^1$

素因数の和:735

約数の個数: 40

約数和(自身を含む): 43663872

約数和(自身を除く): 22886128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 191, 208, 382, 523, 764, 1046, 1528, 2092, 2483, 3056, 4184, 4966, 6799, 8368, 9932, 13598, 19864, 27196, 39728, 54392, 99893, 108784, 199786, 399572, 799144, 1298609, 1598288, 2597218, 5194436, 10388872, 20777744]

約数ペア:

[(1, 20777744), (2, 10388872), (4, 5194436), (8, 2597218), (13, 1598288), (16, 1298609), (26, 799144), (52, 399572), (104, 199786), (191, 108784), (208, 99893), (382, 54392), (523, 39728), (764, 27196), (1046, 19864), (1528, 13598), (2092, 9932), (2483, 8368), (3056, 6799), (4184, 4966)]