19978128

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{8161}}^1$

素因数の和:8192

約数の個数: 60

約数和(自身を含む): 59207148

約数和(自身を除く): 39229020

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 306, 408, 612, 816, 1224, 2448, 8161, 16322, 24483, 32644, 48966, 65288, 73449, 97932, 130576, 138737, 146898, 195864, 277474, 293796, 391728, 416211, 554948, 587592, 832422, 1109896, 1175184, 1248633, 1664844, 2219792, 2497266, 3329688, 4994532, 6659376, 9989064, 19978128]

約数ペア:

[(1, 19978128), (2, 9989064), (3, 6659376), (4, 4994532), (6, 3329688), (8, 2497266), (9, 2219792), (12, 1664844), (16, 1248633), (17, 1175184), (18, 1109896), (24, 832422), (34, 587592), (36, 554948), (48, 416211), (51, 391728), (68, 293796), (72, 277474), (102, 195864), (136, 146898), (144, 138737), (153, 130576), (204, 97932), (272, 73449), (306, 65288), (408, 48966), (612, 32644), (816, 24483), (1224, 16322), (2448, 8161)]