21997968

素因数分解:

$2^4\times 3^1\times {\mathrm{53}}^1\times {\mathrm{8647}}^1$

素因数の和:8711

約数の個数: 40

約数和(自身を含む): 57907008

約数和(自身を除く): 35909040

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 53, 106, 159, 212, 318, 424, 636, 848, 1272, 2544, 8647, 17294, 25941, 34588, 51882, 69176, 103764, 138352, 207528, 415056, 458291, 916582, 1374873, 1833164, 2749746, 3666328, 5499492, 7332656, 10998984, 21997968]

約数ペア:

[(1, 21997968), (2, 10998984), (3, 7332656), (4, 5499492), (6, 3666328), (8, 2749746), (12, 1833164), (16, 1374873), (24, 916582), (48, 458291), (53, 415056), (106, 207528), (159, 138352), (212, 103764), (318, 69176), (424, 51882), (636, 34588), (848, 25941), (1272, 17294), (2544, 8647)]