21463784

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{743}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 42318720

約数和(自身を除く): 20854936

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 743, 1256, 1486, 2972, 3611, 5944, 7222, 14444, 17089, 28888, 34178, 68356, 116651, 136712, 233302, 466604, 933208, 2682973, 5365946, 10731892, 21463784]

約数ペア:

[(1, 21463784), (2, 10731892), (4, 5365946), (8, 2682973), (23, 933208), (46, 466604), (92, 233302), (157, 136712), (184, 116651), (314, 68356), (628, 34178), (743, 28888), (1256, 17089), (1486, 14444), (2972, 7222), (3611, 5944)]