19703481

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{19963}}^1$

素因数の和:20020

約数の個数: 16

約数和(自身を含む): 30664704

約数和(自身を除く): 10961223

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 19963, 59889, 139741, 419223, 938261, 2814783, 6567827, 19703481]

約数ペア:

[(1, 19703481), (3, 6567827), (7, 2814783), (21, 938261), (47, 419223), (141, 139741), (329, 59889), (987, 19963)]