21000201658

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1\times {\mathrm{15497}}^1$

素因数の和:15942

約数の個数: 32

約数和(自身を含む): 33341777280

約数和(自身を除く): 12341575622

約数列:

[1, 2, 23, 46, 89, 178, 331, 662, 2047, 4094, 7613, 15226, 15497, 29459, 30994, 58918, 356431, 677557, 712862, 1355114, 1379233, 2758466, 5129507, 10259014, 31722359, 63444718, 117978661, 235957322, 456526123, 913052246, 10500100829, 21000201658]

約数ペア:

[(1, 21000201658), (2, 10500100829), (23, 913052246), (46, 456526123), (89, 235957322), (178, 117978661), (331, 63444718), (662, 31722359), (2047, 10259014), (4094, 5129507), (7613, 2758466), (15226, 1379233), (15497, 1355114), (29459, 712862), (30994, 677557), (58918, 356431)]