21970294929

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{90989}}^1$

素因数の和:91283

約数の個数: 40

約数和(自身を含む): 35935954560

約数和(自身を除く): 13965659631

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 271, 297, 813, 891, 2439, 2981, 7317, 8943, 21951, 26829, 80487, 90989, 241461, 272967, 818901, 1000879, 2456703, 3002637, 7370109, 9007911, 24658019, 27023733, 73974057, 81071199, 221922171, 271238209, 665766513, 813714627, 1997299539, 2441143881, 7323431643, 21970294929]

約数ペア:

[(1, 21970294929), (3, 7323431643), (9, 2441143881), (11, 1997299539), (27, 813714627), (33, 665766513), (81, 271238209), (99, 221922171), (271, 81071199), (297, 73974057), (813, 27023733), (891, 24658019), (2439, 9007911), (2981, 7370109), (7317, 3002637), (8943, 2456703), (21951, 1000879), (26829, 818901), (80487, 272967), (90989, 241461)]