19885203

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 32002880

約数和(自身を除く): 12117677

約数列:

[1, 3, 9, 13, 27, 39, 117, 181, 313, 351, 543, 939, 1629, 2353, 2817, 4069, 4887, 7059, 8451, 12207, 21177, 36621, 56653, 63531, 109863, 169959, 509877, 736489, 1529631, 2209467, 6628401, 19885203]

約数ペア:

[(1, 19885203), (3, 6628401), (9, 2209467), (13, 1529631), (27, 736489), (39, 509877), (117, 169959), (181, 109863), (313, 63531), (351, 56653), (543, 36621), (939, 21177), (1629, 12207), (2353, 8451), (2817, 7059), (4069, 4887)]