20807793

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{863}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12369807

約数列:

[1, 3, 9, 19, 27, 47, 57, 141, 171, 423, 513, 863, 893, 1269, 2589, 2679, 7767, 8037, 16397, 23301, 24111, 40561, 49191, 121683, 147573, 365049, 442719, 770659, 1095147, 2311977, 6935931, 20807793]

約数ペア:

[(1, 20807793), (3, 6935931), (9, 2311977), (19, 1095147), (27, 770659), (47, 442719), (57, 365049), (141, 147573), (171, 121683), (423, 49191), (513, 40561), (863, 24111), (893, 23301), (1269, 16397), (2589, 8037), (2679, 7767)]