20873997

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:594

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 11785203

約数列:

[1, 3, 9, 27, 29, 53, 87, 159, 261, 477, 503, 783, 1431, 1509, 1537, 4527, 4611, 13581, 13833, 14587, 26659, 41499, 43761, 79977, 131283, 239931, 393849, 719793, 773111, 2319333, 6957999, 20873997]

約数ペア:

[(1, 20873997), (3, 6957999), (9, 2319333), (27, 773111), (29, 719793), (53, 393849), (87, 239931), (159, 131283), (261, 79977), (477, 43761), (503, 41499), (783, 26659), (1431, 14587), (1509, 13833), (1537, 13581), (4527, 4611)]