18641745

素因数分解:

$3^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 34157760

約数和(自身を除く): 15516015

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 229, 243, 335, 405, 603, 687, 1005, 1145, 1215, 1809, 2061, 3015, 3435, 5427, 6183, 9045, 10305, 15343, 16281, 18549, 27135, 30915, 46029, 55647, 76715, 81405, 92745, 138087, 230145, 278235, 414261, 690435, 1242783, 2071305, 3728349, 6213915, 18641745]

約数ペア:

[(1, 18641745), (3, 6213915), (5, 3728349), (9, 2071305), (15, 1242783), (27, 690435), (45, 414261), (67, 278235), (81, 230145), (135, 138087), (201, 92745), (229, 81405), (243, 76715), (335, 55647), (405, 46029), (603, 30915), (687, 27135), (1005, 18549), (1145, 16281), (1215, 15343), (1809, 10305), (2061, 9045), (3015, 6183), (3435, 5427)]