19889469

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 40

約数和(自身を含む): 31284792

約数和(自身を除く): 11395323

約数列:

[1, 3, 9, 27, 41, 53, 81, 113, 123, 159, 339, 369, 477, 1017, 1107, 1431, 2173, 3051, 3321, 4293, 4633, 5989, 6519, 9153, 13899, 17967, 19557, 41697, 53901, 58671, 125091, 161703, 176013, 245549, 375273, 485109, 736647, 2209941, 6629823, 19889469]

約数ペア:

[(1, 19889469), (3, 6629823), (9, 2209941), (27, 736647), (41, 485109), (53, 375273), (81, 245549), (113, 176013), (123, 161703), (159, 125091), (339, 58671), (369, 53901), (477, 41697), (1017, 19557), (1107, 17967), (1431, 13899), (2173, 9153), (3051, 6519), (3321, 5989), (4293, 4633)]