21451872

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17189}}^1$

素因数の和:17215

約数の個数: 48

約数和(自身を含む): 60646320

約数和(自身を除く): 39194448

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 17189, 34378, 51567, 68756, 103134, 137512, 206268, 223457, 275024, 412536, 446914, 550048, 670371, 825072, 893828, 1340742, 1650144, 1787656, 2681484, 3575312, 5362968, 7150624, 10725936, 21451872]

約数ペア:

[(1, 21451872), (2, 10725936), (3, 7150624), (4, 5362968), (6, 3575312), (8, 2681484), (12, 1787656), (13, 1650144), (16, 1340742), (24, 893828), (26, 825072), (32, 670371), (39, 550048), (48, 446914), (52, 412536), (78, 275024), (96, 223457), (104, 206268), (156, 137512), (208, 103134), (312, 68756), (416, 51567), (624, 34378), (1248, 17189)]