21984767

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3517}}^1$

素因数の和:3590

約数の個数: 16

約数和(自身を含む): 27018240

約数和(自身を除く): 5033473

約数列:

[1, 7, 19, 47, 133, 329, 893, 3517, 6251, 24619, 66823, 165299, 467761, 1157093, 3140681, 21984767]

約数ペア:

[(1, 21984767), (7, 3140681), (19, 1157093), (47, 467761), (133, 165299), (329, 66823), (893, 24619), (3517, 6251)]