17978289

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 28926720

約数和(自身を除く): 10948431

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 557, 609, 1113, 1537, 1671, 3899, 4611, 10759, 11697, 16153, 29521, 32277, 48459, 88563, 113071, 206647, 339213, 619941, 856109, 2568327, 5992763, 17978289]

約数ペア:

[(1, 17978289), (3, 5992763), (7, 2568327), (21, 856109), (29, 619941), (53, 339213), (87, 206647), (159, 113071), (203, 88563), (371, 48459), (557, 32277), (609, 29521), (1113, 16153), (1537, 11697), (1671, 10759), (3899, 4611)]