21825045

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 45287424

約数和(自身を除く): 23462379

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 71, 81, 99, 115, 135, 165, 207, 213, 243, 253, 297, 345, 355, 405, 495, 621, 639, 759, 781, 891, 1035, 1065, 1215, 1265, 1485, 1633, 1863, 1917, 2277, 2343, 2673, 3105, 3195, 3795, 3905, 4455, 4899, 5589, 5751, 6831, 7029, 8165, 9315, 9585, 11385, 11715, 13365, 14697, 17253, 17963, 20493, 21087, 24495, 27945, 28755, 34155, 35145, 44091, 53889, 61479, 63261, 73485, 86265, 89815, 102465, 105435, 132273, 161667, 189783, 220455, 269445, 307395, 316305, 396819, 485001, 661365, 808335, 948915, 1455003, 1984095, 2425005, 4365009, 7275015, 21825045]

約数ペア:

[(1, 21825045), (3, 7275015), (5, 4365009), (9, 2425005), (11, 1984095), (15, 1455003), (23, 948915), (27, 808335), (33, 661365), (45, 485001), (55, 396819), (69, 316305), (71, 307395), (81, 269445), (99, 220455), (115, 189783), (135, 161667), (165, 132273), (207, 105435), (213, 102465), (243, 89815), (253, 86265), (297, 73485), (345, 63261), (355, 61479), (405, 53889), (495, 44091), (621, 35145), (639, 34155), (759, 28755), (781, 27945), (891, 24495), (1035, 21087), (1065, 20493), (1215, 17963), (1265, 17253), (1485, 14697), (1633, 13365), (1863, 11715), (1917, 11385), (2277, 9585), (2343, 9315), (2673, 8165), (3105, 7029), (3195, 6831), (3795, 5751), (3905, 5589), (4455, 4899)]