20090127

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{4357}}^1$

素因数の和:4442

約数の個数: 16

約数和(自身を含む): 28239840

約数和(自身を除く): 8149713

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4357, 4611, 13071, 126353, 230921, 379059, 692763, 6696709, 20090127]

約数ペア:

[(1, 20090127), (3, 6696709), (29, 692763), (53, 379059), (87, 230921), (159, 126353), (1537, 13071), (4357, 4611)]