20974430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123379}}^1$

素因数の和:123403

約数の個数: 16

約数和(自身を含む): 39975120

約数和(自身を除く): 19000690

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123379, 246758, 616895, 1233790, 2097443, 4194886, 10487215, 20974430]

約数ペア:

[(1, 20974430), (2, 10487215), (5, 4194886), (10, 2097443), (17, 1233790), (34, 616895), (85, 246758), (170, 123379)]