21637270

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18279530

約数列:

[1, 2, 5, 10, 83, 131, 166, 199, 262, 398, 415, 655, 830, 995, 1310, 1990, 10873, 16517, 21746, 26069, 33034, 52138, 54365, 82585, 108730, 130345, 165170, 260690, 2163727, 4327454, 10818635, 21637270]

約数ペア:

[(1, 21637270), (2, 10818635), (5, 4327454), (10, 2163727), (83, 260690), (131, 165170), (166, 130345), (199, 108730), (262, 82585), (398, 54365), (415, 52138), (655, 33034), (830, 26069), (995, 21746), (1310, 16517), (1990, 10873)]