209948613

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2671}}^1$

素因数の和:2897

約数の個数: 32

約数和(自身を含む): 338595840

約数和(自身を除く): 128647227

約数列:

[1, 3, 7, 19, 21, 57, 133, 197, 399, 591, 1379, 2671, 3743, 4137, 8013, 11229, 18697, 26201, 50749, 56091, 78603, 152247, 355243, 526187, 1065729, 1578561, 3683309, 9997553, 11049927, 29992659, 69982871, 209948613]

約数ペア:

[(1, 209948613), (3, 69982871), (7, 29992659), (19, 11049927), (21, 9997553), (57, 3683309), (133, 1578561), (197, 1065729), (399, 526187), (591, 355243), (1379, 152247), (2671, 78603), (3743, 56091), (4137, 50749), (8013, 26201), (11229, 18697)]