221709917

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{6277}}^1$

素因数の和:6333

約数の個数: 24

約数和(自身を含む): 275729760

約数和(自身を除く): 54019843

約数列:

[1, 11, 13, 19, 143, 169, 209, 247, 1859, 2717, 3211, 6277, 35321, 69047, 81601, 119263, 897611, 1060813, 1311893, 1550419, 11668943, 17054609, 20155447, 221709917]

約数ペア:

[(1, 221709917), (11, 20155447), (13, 17054609), (19, 11668943), (143, 1550419), (169, 1311893), (209, 1060813), (247, 897611), (1859, 119263), (2717, 81601), (3211, 69047), (6277, 35321)]