20387646

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 49305600

約数和(自身を除く): 28917954

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 93, 114, 171, 186, 279, 342, 513, 558, 589, 641, 837, 1026, 1178, 1282, 1674, 1767, 1923, 3534, 3846, 5301, 5769, 10602, 11538, 12179, 15903, 17307, 19871, 24358, 31806, 34614, 36537, 39742, 59613, 73074, 109611, 119226, 178839, 219222, 328833, 357678, 377549, 536517, 657666, 755098, 1073034, 1132647, 2265294, 3397941, 6795882, 10193823, 20387646]

約数ペア:

[(1, 20387646), (2, 10193823), (3, 6795882), (6, 3397941), (9, 2265294), (18, 1132647), (19, 1073034), (27, 755098), (31, 657666), (38, 536517), (54, 377549), (57, 357678), (62, 328833), (93, 219222), (114, 178839), (171, 119226), (186, 109611), (279, 73074), (342, 59613), (513, 39742), (558, 36537), (589, 34614), (641, 31806), (837, 24358), (1026, 19871), (1178, 17307), (1282, 15903), (1674, 12179), (1767, 11538), (1923, 10602), (3534, 5769), (3846, 5301)]