20497029

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1093}}^1$

素因数の和:1169

約数の個数: 32

約数和(自身を含む): 33607680

約数和(自身を除く): 13110651

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 1093, 2679, 3279, 6251, 7651, 18753, 20767, 22953, 51371, 62301, 145369, 154113, 359597, 436107, 976049, 1078791, 2928147, 6832343, 20497029]

約数ペア:

[(1, 20497029), (3, 6832343), (7, 2928147), (19, 1078791), (21, 976049), (47, 436107), (57, 359597), (133, 154113), (141, 145369), (329, 62301), (399, 51371), (893, 22953), (987, 20767), (1093, 18753), (2679, 7651), (3279, 6251)]