21999549

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2699}}^1$

素因数の和:2745

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14288451

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2699, 2717, 8097, 8151, 29689, 35087, 51281, 89067, 105261, 153843, 385957, 564091, 666653, 1157871, 1692273, 1999959, 7333183, 21999549]

約数ペア:

[(1, 21999549), (3, 7333183), (11, 1999959), (13, 1692273), (19, 1157871), (33, 666653), (39, 564091), (57, 385957), (143, 153843), (209, 105261), (247, 89067), (429, 51281), (627, 35087), (741, 29689), (2699, 8151), (2717, 8097)]