21506518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2237}}^1$

素因数の和:2292

約数の個数: 32

約数和(自身を含む): 38672640

約数和(自身を除く): 17166122

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 209, 253, 418, 437, 506, 874, 2237, 4474, 4807, 9614, 24607, 42503, 49214, 51451, 85006, 102902, 467533, 565961, 935066, 977569, 1131922, 1955138, 10753259, 21506518]

約数ペア:

[(1, 21506518), (2, 10753259), (11, 1955138), (19, 1131922), (22, 977569), (23, 935066), (38, 565961), (46, 467533), (209, 102902), (253, 85006), (418, 51451), (437, 49214), (506, 42503), (874, 24607), (2237, 9614), (4474, 4807)]