21540168

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{2557}}^1$

素因数の和:2588

約数の個数: 80

約数和(自身を含む): 64998780

約数和(自身を除く): 43458612

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 312, 324, 351, 468, 648, 702, 936, 1053, 1404, 2106, 2557, 2808, 4212, 5114, 7671, 8424, 10228, 15342, 20456, 23013, 30684, 33241, 46026, 61368, 66482, 69039, 92052, 99723, 132964, 138078, 184104, 199446, 207117, 265928, 276156, 299169, 398892, 414234, 552312, 598338, 797784, 828468, 897507, 1196676, 1656936, 1795014, 2393352, 2692521, 3590028, 5385042, 7180056, 10770084, 21540168]

約数ペア:

[(1, 21540168), (2, 10770084), (3, 7180056), (4, 5385042), (6, 3590028), (8, 2692521), (9, 2393352), (12, 1795014), (13, 1656936), (18, 1196676), (24, 897507), (26, 828468), (27, 797784), (36, 598338), (39, 552312), (52, 414234), (54, 398892), (72, 299169), (78, 276156), (81, 265928), (104, 207117), (108, 199446), (117, 184104), (156, 138078), (162, 132964), (216, 99723), (234, 92052), (312, 69039), (324, 66482), (351, 61368), (468, 46026), (648, 33241), (702, 30684), (936, 23013), (1053, 20456), (1404, 15342), (2106, 10228), (2557, 8424), (2808, 7671), (4212, 5114)]