21570263

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 6734377

約数列:

[1, 11, 13, 17, 19, 143, 187, 209, 221, 247, 323, 467, 2431, 2717, 3553, 4199, 5137, 6071, 7939, 8873, 46189, 66781, 87329, 97603, 103207, 115349, 150841, 1135277, 1268839, 1659251, 1960933, 21570263]

約数ペア:

[(1, 21570263), (11, 1960933), (13, 1659251), (17, 1268839), (19, 1135277), (143, 150841), (187, 115349), (209, 103207), (221, 97603), (247, 87329), (323, 66781), (467, 46189), (2431, 8873), (2717, 7939), (3553, 6071), (4199, 5137)]