31881456

素因数分解:

$2^4\times 3^2\times {\mathrm{221399}}^1$

素因数の和:221413

約数の個数: 30

約数和(自身を含む): 89224200

約数和(自身を除く): 57342744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 221399, 442798, 664197, 885596, 1328394, 1771192, 1992591, 2656788, 3542384, 3985182, 5313576, 7970364, 10627152, 15940728, 31881456]

約数ペア:

[(1, 31881456), (2, 15940728), (3, 10627152), (4, 7970364), (6, 5313576), (8, 3985182), (9, 3542384), (12, 2656788), (16, 1992591), (18, 1771192), (24, 1328394), (36, 885596), (48, 664197), (72, 442798), (144, 221399)]