20545778519

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{37379}}^1$

素因数の和:37583

約数の個数: 32

約数和(自身を含む): 25837056000

約数和(自身を除く): 5291277481

約数列:

[1, 7, 17, 31, 119, 149, 217, 527, 1043, 2533, 3689, 4619, 17731, 32333, 37379, 78523, 261653, 549661, 635443, 1158749, 4448101, 5569471, 8111243, 19698733, 38986297, 94681007, 137891131, 172653601, 662767049, 1208575207, 2935111217, 20545778519]

約数ペア:

[(1, 20545778519), (7, 2935111217), (17, 1208575207), (31, 662767049), (119, 172653601), (149, 137891131), (217, 94681007), (527, 38986297), (1043, 19698733), (2533, 8111243), (3689, 5569471), (4619, 4448101), (17731, 1158749), (32333, 635443), (37379, 549661), (78523, 261653)]