28103686

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 49726224

約数和(自身を除く): 21622538

約数列:

[1, 2, 13, 17, 26, 34, 67, 73, 134, 146, 169, 221, 338, 442, 871, 949, 1139, 1241, 1742, 1898, 2278, 2482, 2873, 4891, 5746, 9782, 11323, 12337, 14807, 16133, 22646, 24674, 29614, 32266, 63583, 83147, 127166, 166294, 192491, 209729, 384982, 419458, 826579, 1080911, 1653158, 2161822, 14051843, 28103686]

約数ペア:

[(1, 28103686), (2, 14051843), (13, 2161822), (17, 1653158), (26, 1080911), (34, 826579), (67, 419458), (73, 384982), (134, 209729), (146, 192491), (169, 166294), (221, 127166), (338, 83147), (442, 63583), (871, 32266), (949, 29614), (1139, 24674), (1241, 22646), (1742, 16133), (1898, 14807), (2278, 12337), (2482, 11323), (2873, 9782), (4891, 5746)]