19984835

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7499}}^1$

素因数の和:7558

約数の個数: 16

約数和(自身を含む): 26460000

約数和(自身を除く): 6475165

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7499, 37495, 97487, 307459, 487435, 1537295, 3996967, 19984835]

約数ペア:

[(1, 19984835), (5, 3996967), (13, 1537295), (41, 487435), (65, 307459), (205, 97487), (533, 37495), (2665, 7499)]