21282014

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:744

約数の個数: 32

約数和(自身を含む): 36785280

約数和(自身を除く): 15503266

約数列:

[1, 2, 13, 19, 26, 38, 67, 134, 247, 494, 643, 871, 1273, 1286, 1742, 2546, 8359, 12217, 16549, 16718, 24434, 33098, 43081, 86162, 158821, 317642, 560053, 818539, 1120106, 1637078, 10641007, 21282014]

約数ペア:

[(1, 21282014), (2, 10641007), (13, 1637078), (19, 1120106), (26, 818539), (38, 560053), (67, 317642), (134, 158821), (247, 86162), (494, 43081), (643, 33098), (871, 24434), (1273, 16718), (1286, 16549), (1742, 12217), (2546, 8359)]