137978981

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 168956928

約数和(自身を除く): 30977947

約数列:

[1, 7, 41, 47, 53, 193, 287, 329, 371, 1351, 1927, 2173, 2491, 7913, 9071, 10229, 13489, 15211, 17437, 55391, 63497, 71603, 102131, 371911, 419389, 480763, 714917, 2603377, 2935723, 3365341, 19711283, 137978981]

約数ペア:

[(1, 137978981), (7, 19711283), (41, 3365341), (47, 2935723), (53, 2603377), (193, 714917), (287, 480763), (329, 419389), (371, 371911), (1351, 102131), (1927, 71603), (2173, 63497), (2491, 55391), (7913, 17437), (9071, 15211), (10229, 13489)]