31278422

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 54912000

約数和(自身を除く): 23633578

約数列:

[1, 2, 7, 14, 103, 109, 199, 206, 218, 398, 721, 763, 1393, 1442, 1526, 2786, 11227, 20497, 21691, 22454, 40994, 43382, 78589, 143479, 151837, 157178, 286958, 303674, 2234173, 4468346, 15639211, 31278422]

約数ペア:

[(1, 31278422), (2, 15639211), (7, 4468346), (14, 2234173), (103, 303674), (109, 286958), (199, 157178), (206, 151837), (218, 143479), (398, 78589), (721, 43382), (763, 40994), (1393, 22454), (1442, 21691), (1526, 20497), (2786, 11227)]