21445814

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14479306

約数列:

[1, 2, 13, 26, 53, 79, 106, 158, 197, 394, 689, 1027, 1378, 2054, 2561, 4187, 5122, 8374, 10441, 15563, 20882, 31126, 54431, 108862, 135733, 202319, 271466, 404638, 824839, 1649678, 10722907, 21445814]

約数ペア:

[(1, 21445814), (2, 10722907), (13, 1649678), (26, 824839), (53, 404638), (79, 271466), (106, 202319), (158, 135733), (197, 108862), (394, 54431), (689, 31126), (1027, 20882), (1378, 15563), (2054, 10441), (2561, 8374), (4187, 5122)]