215197499

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 254251008

約数和(自身を除く): 39053509

約数列:

[1, 11, 23, 43, 131, 151, 253, 473, 989, 1441, 1661, 3013, 3473, 5633, 6493, 10879, 19781, 33143, 38203, 61963, 71423, 129559, 149339, 217591, 454963, 850583, 1425149, 1642729, 5004593, 9356413, 19563409, 215197499]

約数ペア:

[(1, 215197499), (11, 19563409), (23, 9356413), (43, 5004593), (131, 1642729), (151, 1425149), (253, 850583), (473, 454963), (989, 217591), (1441, 149339), (1661, 129559), (3013, 71423), (3473, 61963), (5633, 38203), (6493, 33143), (10879, 19781)]