19956006

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{631}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 49690368

約数和(自身を除く): 29734362

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 251, 502, 631, 753, 1262, 1506, 1757, 1893, 2259, 3514, 3786, 4417, 4518, 5271, 5679, 8834, 10542, 11358, 13251, 15813, 26502, 31626, 39753, 79506, 158381, 316762, 475143, 950286, 1108667, 1425429, 2217334, 2850858, 3326001, 6652002, 9978003, 19956006]

約数ペア:

[(1, 19956006), (2, 9978003), (3, 6652002), (6, 3326001), (7, 2850858), (9, 2217334), (14, 1425429), (18, 1108667), (21, 950286), (42, 475143), (63, 316762), (126, 158381), (251, 79506), (502, 39753), (631, 31626), (753, 26502), (1262, 15813), (1506, 13251), (1757, 11358), (1893, 10542), (2259, 8834), (3514, 5679), (3786, 5271), (4417, 4518)]