216913869

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:667

約数の個数: 40

約数和(自身を含む): 335635608

約数和(自身を除く): 118721739

約数列:

[1, 3, 9, 27, 37, 81, 111, 157, 333, 461, 471, 999, 1383, 1413, 2997, 4149, 4239, 5809, 12447, 12717, 17057, 17427, 37341, 51171, 52281, 72377, 153513, 156843, 217131, 460539, 470529, 651393, 1381617, 1954179, 2677949, 5862537, 8033847, 24101541, 72304623, 216913869]

約数ペア:

[(1, 216913869), (3, 72304623), (9, 24101541), (27, 8033847), (37, 5862537), (81, 2677949), (111, 1954179), (157, 1381617), (333, 651393), (461, 470529), (471, 460539), (999, 217131), (1383, 156843), (1413, 153513), (2997, 72377), (4149, 52281), (4239, 51171), (5809, 37341), (12447, 17427), (12717, 17057)]