21188002

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 36832320

約数和(自身を除く): 15644318

約数列:

[1, 2, 11, 19, 22, 38, 173, 209, 293, 346, 418, 586, 1903, 3223, 3287, 3806, 5567, 6446, 6574, 11134, 36157, 50689, 61237, 72314, 101378, 122474, 557579, 963091, 1115158, 1926182, 10594001, 21188002]

約数ペア:

[(1, 21188002), (2, 10594001), (11, 1926182), (19, 1115158), (22, 963091), (38, 557579), (173, 122474), (209, 101378), (293, 72314), (346, 61237), (418, 50689), (586, 36157), (1903, 11134), (3223, 6574), (3287, 6446), (3806, 5567)]