21186256

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14551}}^1$

素因数の和:14579

約数の個数: 40

約数和(自身を含む): 50524544

約数和(自身を除く): 29338288

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14551, 29102, 58204, 101857, 116408, 189163, 203714, 232816, 378326, 407428, 756652, 814856, 1324141, 1513304, 1629712, 2648282, 3026608, 5296564, 10593128, 21186256]

約数ペア:

[(1, 21186256), (2, 10593128), (4, 5296564), (7, 3026608), (8, 2648282), (13, 1629712), (14, 1513304), (16, 1324141), (26, 814856), (28, 756652), (52, 407428), (56, 378326), (91, 232816), (104, 203714), (112, 189163), (182, 116408), (208, 101857), (364, 58204), (728, 29102), (1456, 14551)]