21211597

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1693}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 24881472

約数和(自身を除く): 3669875

約数列:

[1, 11, 17, 67, 187, 737, 1139, 1693, 12529, 18623, 28781, 113431, 316591, 1247741, 1928327, 21211597]

約数ペア:

[(1, 21211597), (11, 1928327), (17, 1247741), (67, 316591), (187, 113431), (737, 28781), (1139, 18623), (1693, 12529)]