25560213

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 42024960

約数和(自身を除く): 16464747

約数列:

[1, 3, 7, 21, 31, 49, 71, 79, 93, 147, 213, 217, 237, 497, 553, 651, 1491, 1519, 1659, 2201, 2449, 3479, 3871, 4557, 5609, 6603, 7347, 10437, 11613, 15407, 16827, 17143, 39263, 46221, 51429, 107849, 117789, 120001, 173879, 274841, 323547, 360003, 521637, 824523, 1217153, 3651459, 8520071, 25560213]

約数ペア:

[(1, 25560213), (3, 8520071), (7, 3651459), (21, 1217153), (31, 824523), (49, 521637), (71, 360003), (79, 323547), (93, 274841), (147, 173879), (213, 120001), (217, 117789), (237, 107849), (497, 51429), (553, 46221), (651, 39263), (1491, 17143), (1519, 16827), (1659, 15407), (2201, 11613), (2449, 10437), (3479, 7347), (3871, 6603), (4557, 5609)]