18887505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 37836288

約数和(自身を除く): 18948783

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 101, 105, 137, 195, 273, 303, 411, 455, 505, 685, 707, 959, 1313, 1365, 1515, 1781, 2055, 2121, 2877, 3535, 3939, 4795, 5343, 6565, 8905, 9191, 10605, 12467, 13837, 14385, 19695, 26715, 27573, 37401, 41511, 45955, 62335, 69185, 96859, 137865, 179881, 187005, 207555, 290577, 484295, 539643, 899405, 1259167, 1452885, 2698215, 3777501, 6295835, 18887505]

約数ペア:

[(1, 18887505), (3, 6295835), (5, 3777501), (7, 2698215), (13, 1452885), (15, 1259167), (21, 899405), (35, 539643), (39, 484295), (65, 290577), (91, 207555), (101, 187005), (105, 179881), (137, 137865), (195, 96859), (273, 69185), (303, 62335), (411, 45955), (455, 41511), (505, 37401), (685, 27573), (707, 26715), (959, 19695), (1313, 14385), (1365, 13837), (1515, 12467), (1781, 10605), (2055, 9191), (2121, 8905), (2877, 6565), (3535, 5343), (3939, 4795)]