20987150853

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{27541}}^1$

素因数の和:28053

約数の個数: 32

約数和(自身を含む): 30538569600

約数和(自身を除く): 9551418747

約数列:

[1, 3, 19, 29, 57, 87, 461, 551, 1383, 1653, 8759, 13369, 26277, 27541, 40107, 82623, 254011, 523279, 762033, 798689, 1569837, 2396067, 12696401, 15175091, 38089203, 45525273, 241231619, 368195629, 723694857, 1104586887, 6995716951, 20987150853]

約数ペア:

[(1, 20987150853), (3, 6995716951), (19, 1104586887), (29, 723694857), (57, 368195629), (87, 241231619), (461, 45525273), (551, 38089203), (1383, 15175091), (1653, 12696401), (8759, 2396067), (13369, 1569837), (26277, 798689), (27541, 762033), (40107, 523279), (82623, 254011)]