20821368

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{16369}}^1$

素因数の和:16431

約数の個数: 32

約数和(自身を含む): 53038800

約数和(自身を除く): 32217432

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 16369, 32738, 49107, 65476, 98214, 130952, 196428, 392856, 867557, 1735114, 2602671, 3470228, 5205342, 6940456, 10410684, 20821368]

約数ペア:

[(1, 20821368), (2, 10410684), (3, 6940456), (4, 5205342), (6, 3470228), (8, 2602671), (12, 1735114), (24, 867557), (53, 392856), (106, 196428), (159, 130952), (212, 98214), (318, 65476), (424, 49107), (636, 32738), (1272, 16369)]