19952172

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{12889}}^1$

素因数の和:12942

約数の個数: 36

約数和(自身を含む): 51611560

約数和(自身を除く): 31659388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 12889, 25778, 38667, 51556, 77334, 116001, 154668, 232002, 464004, 554227, 1108454, 1662681, 2216908, 3325362, 4988043, 6650724, 9976086, 19952172]

約数ペア:

[(1, 19952172), (2, 9976086), (3, 6650724), (4, 4988043), (6, 3325362), (9, 2216908), (12, 1662681), (18, 1108454), (36, 554227), (43, 464004), (86, 232002), (129, 154668), (172, 116001), (258, 77334), (387, 51556), (516, 38667), (774, 25778), (1548, 12889)]