21021294

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 49379328

約数和(自身を除く): 28358034

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 127, 147, 254, 294, 381, 563, 762, 889, 1126, 1689, 1778, 2667, 3378, 3941, 5334, 6223, 7882, 11823, 12446, 18669, 23646, 27587, 37338, 55174, 71501, 82761, 143002, 165522, 214503, 429006, 500507, 1001014, 1501521, 3003042, 3503549, 7007098, 10510647, 21021294]

約数ペア:

[(1, 21021294), (2, 10510647), (3, 7007098), (6, 3503549), (7, 3003042), (14, 1501521), (21, 1001014), (42, 500507), (49, 429006), (98, 214503), (127, 165522), (147, 143002), (254, 82761), (294, 71501), (381, 55174), (563, 37338), (762, 27587), (889, 23646), (1126, 18669), (1689, 12446), (1778, 11823), (2667, 7882), (3378, 6223), (3941, 5334)]