21537306

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{251}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33620454

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 227, 251, 378, 454, 502, 681, 753, 1362, 1506, 1589, 1757, 2043, 2259, 3178, 3514, 4086, 4518, 4767, 5271, 6129, 6777, 9534, 10542, 12258, 13554, 14301, 15813, 28602, 31626, 42903, 47439, 56977, 85806, 94878, 113954, 170931, 341862, 398839, 512793, 797678, 1025586, 1196517, 1538379, 2393034, 3076758, 3589551, 7179102, 10768653, 21537306]

約数ペア:

[(1, 21537306), (2, 10768653), (3, 7179102), (6, 3589551), (7, 3076758), (9, 2393034), (14, 1538379), (18, 1196517), (21, 1025586), (27, 797678), (42, 512793), (54, 398839), (63, 341862), (126, 170931), (189, 113954), (227, 94878), (251, 85806), (378, 56977), (454, 47439), (502, 42903), (681, 31626), (753, 28602), (1362, 15813), (1506, 14301), (1589, 13554), (1757, 12258), (2043, 10542), (2259, 9534), (3178, 6777), (3514, 6129), (4086, 5271), (4518, 4767)]