21231648

素因数分解:

$2^5\times 3^2\times {\mathrm{73721}}^1$

素因数の和:73737

約数の個数: 36

約数和(自身を含む): 60378318

約数和(自身を除く): 39146670

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 73721, 147442, 221163, 294884, 442326, 589768, 663489, 884652, 1179536, 1326978, 1769304, 2359072, 2653956, 3538608, 5307912, 7077216, 10615824, 21231648]

約数ペア:

[(1, 21231648), (2, 10615824), (3, 7077216), (4, 5307912), (6, 3538608), (8, 2653956), (9, 2359072), (12, 1769304), (16, 1326978), (18, 1179536), (24, 884652), (32, 663489), (36, 589768), (48, 442326), (72, 294884), (96, 221163), (144, 147442), (288, 73721)]