221539192

素因数分解:

$2^3\times 7^2\times {\mathrm{283}}^1\times {\mathrm{1997}}^1$

素因数の和:2300

約数の個数: 48

約数和(自身を含む): 485154360

約数和(自身を除く): 263615168

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 283, 392, 566, 1132, 1981, 1997, 2264, 3962, 3994, 7924, 7988, 13867, 13979, 15848, 15976, 27734, 27958, 55468, 55916, 97853, 110936, 111832, 195706, 391412, 565151, 782824, 1130302, 2260604, 3956057, 4521208, 7912114, 15824228, 27692399, 31648456, 55384798, 110769596, 221539192]

約数ペア:

[(1, 221539192), (2, 110769596), (4, 55384798), (7, 31648456), (8, 27692399), (14, 15824228), (28, 7912114), (49, 4521208), (56, 3956057), (98, 2260604), (196, 1130302), (283, 782824), (392, 565151), (566, 391412), (1132, 195706), (1981, 111832), (1997, 110936), (2264, 97853), (3962, 55916), (3994, 55468), (7924, 27958), (7988, 27734), (13867, 15976), (13979, 15848)]