21781470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6661}}^1$

素因数の和:6780

約数の個数: 32

約数和(自身を含む): 52763040

約数和(自身を除く): 30981570

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 109, 218, 327, 545, 654, 1090, 1635, 3270, 6661, 13322, 19983, 33305, 39966, 66610, 99915, 199830, 726049, 1452098, 2178147, 3630245, 4356294, 7260490, 10890735, 21781470]

約数ペア:

[(1, 21781470), (2, 10890735), (3, 7260490), (5, 4356294), (6, 3630245), (10, 2178147), (15, 1452098), (30, 726049), (109, 199830), (218, 99915), (327, 66610), (545, 39966), (654, 33305), (1090, 19983), (1635, 13322), (3270, 6661)]