18641259

素因数分解:

$3^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:319

約数の個数: 56

約数和(自身を含む): 34521312

約数和(自身を除く): 15880053

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 281, 351, 567, 729, 819, 843, 1053, 1701, 1967, 2457, 2529, 3159, 3653, 5103, 5901, 7371, 7587, 9477, 10959, 17703, 22113, 22761, 25571, 32877, 53109, 66339, 68283, 76713, 98631, 159327, 204849, 230139, 295893, 477981, 690417, 887679, 1433943, 2071251, 2663037, 6213753, 18641259]

約数ペア:

[(1, 18641259), (3, 6213753), (7, 2663037), (9, 2071251), (13, 1433943), (21, 887679), (27, 690417), (39, 477981), (63, 295893), (81, 230139), (91, 204849), (117, 159327), (189, 98631), (243, 76713), (273, 68283), (281, 66339), (351, 53109), (567, 32877), (729, 25571), (819, 22761), (843, 22113), (1053, 17703), (1701, 10959), (1967, 9477), (2457, 7587), (2529, 7371), (3159, 5901), (3653, 5103)]