81206916

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{138107}}^1$

素因数の和:138128

約数の個数: 36

約数和(自身を含む): 220420368

約数和(自身を除く): 139213452

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 138107, 276214, 414321, 552428, 828642, 966749, 1657284, 1933498, 2900247, 3866996, 5800494, 6767243, 11600988, 13534486, 20301729, 27068972, 40603458, 81206916]

約数ペア:

[(1, 81206916), (2, 40603458), (3, 27068972), (4, 20301729), (6, 13534486), (7, 11600988), (12, 6767243), (14, 5800494), (21, 3866996), (28, 2900247), (42, 1933498), (49, 1657284), (84, 966749), (98, 828642), (147, 552428), (196, 414321), (294, 276214), (588, 138107)]