18490518

素因数分解:

$2^1\times 3^4\times {\mathrm{157}}^1\times {\mathrm{727}}^1$

素因数の和:898

約数の個数: 40

約数和(自身を含む): 41753712

約数和(自身を除く): 23263194

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 157, 162, 314, 471, 727, 942, 1413, 1454, 2181, 2826, 4239, 4362, 6543, 8478, 12717, 13086, 19629, 25434, 39258, 58887, 114139, 117774, 228278, 342417, 684834, 1027251, 2054502, 3081753, 6163506, 9245259, 18490518]

約数ペア:

[(1, 18490518), (2, 9245259), (3, 6163506), (6, 3081753), (9, 2054502), (18, 1027251), (27, 684834), (54, 342417), (81, 228278), (157, 117774), (162, 114139), (314, 58887), (471, 39258), (727, 25434), (942, 19629), (1413, 13086), (1454, 12717), (2181, 8478), (2826, 6543), (4239, 4362)]