20515974

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1021}}^1$

素因数の和:1240

約数の個数: 32

約数和(自身を含む): 43708896

約数和(自身を除く): 23192922

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 197, 394, 591, 1021, 1182, 2042, 3063, 3349, 6126, 6698, 10047, 17357, 20094, 34714, 52071, 104142, 201137, 402274, 603411, 1206822, 3419329, 6838658, 10257987, 20515974]

約数ペア:

[(1, 20515974), (2, 10257987), (3, 6838658), (6, 3419329), (17, 1206822), (34, 603411), (51, 402274), (102, 201137), (197, 104142), (394, 52071), (591, 34714), (1021, 20094), (1182, 17357), (2042, 10047), (3063, 6698), (3349, 6126)]