21461256

素因数分解:

$2^3\times 3^2\times {\mathrm{347}}^1\times {\mathrm{859}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 58359600

約数和(自身を除く): 36898344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 347, 694, 859, 1041, 1388, 1718, 2082, 2577, 2776, 3123, 3436, 4164, 5154, 6246, 6872, 7731, 8328, 10308, 12492, 15462, 20616, 24984, 30924, 61848, 298073, 596146, 894219, 1192292, 1788438, 2384584, 2682657, 3576876, 5365314, 7153752, 10730628, 21461256]

約数ペア:

[(1, 21461256), (2, 10730628), (3, 7153752), (4, 5365314), (6, 3576876), (8, 2682657), (9, 2384584), (12, 1788438), (18, 1192292), (24, 894219), (36, 596146), (72, 298073), (347, 61848), (694, 30924), (859, 24984), (1041, 20616), (1388, 15462), (1718, 12492), (2082, 10308), (2577, 8328), (2776, 7731), (3123, 6872), (3436, 6246), (4164, 5154)]