20986188635

素因数分解:

$5^1\times {\mathrm{401}}^1\times {\mathrm{503}}^1\times {\mathrm{20809}}^1$

素因数の和:21718

約数の個数: 16

約数和(自身を含む): 25297634880

約数和(自身を除く): 4311446245

約数列:

[1, 5, 401, 503, 2005, 2515, 20809, 104045, 201703, 1008515, 8344409, 10466927, 41722045, 52334635, 4197237727, 20986188635]

約数ペア:

[(1, 20986188635), (5, 4197237727), (401, 52334635), (503, 41722045), (2005, 10466927), (2515, 8344409), (20809, 1008515), (104045, 201703)]