21425534

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 35985600

約数和(自身を除く): 14560066

約数列:

[1, 2, 13, 26, 41, 82, 101, 199, 202, 398, 533, 1066, 1313, 2587, 2626, 4141, 5174, 8159, 8282, 16318, 20099, 40198, 53833, 106067, 107666, 212134, 261287, 522574, 824059, 1648118, 10712767, 21425534]

約数ペア:

[(1, 21425534), (2, 10712767), (13, 1648118), (26, 824059), (41, 522574), (82, 261287), (101, 212134), (199, 107666), (202, 106067), (398, 53833), (533, 40198), (1066, 20099), (1313, 16318), (2587, 8282), (2626, 8159), (4141, 5174)]