20977736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201709}}^1$

素因数の和:201728

約数の個数: 16

約数和(自身を含む): 42359100

約数和(自身を除く): 21381364

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201709, 403418, 806836, 1613672, 2622217, 5244434, 10488868, 20977736]

約数ペア:

[(1, 20977736), (2, 10488868), (4, 5244434), (8, 2622217), (13, 1613672), (26, 806836), (52, 403418), (104, 201709)]