217203952

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{19993}}^1$

素因数の和:20105

約数の個数: 40

約数和(自身を含む): 485934176

約数和(自身を除く): 268730224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2716, 5432, 10864, 19993, 39986, 79972, 139951, 159944, 279902, 319888, 559804, 1119608, 1939321, 2239216, 3878642, 7757284, 13575247, 15514568, 27150494, 31029136, 54300988, 108601976, 217203952]

約数ペア:

[(1, 217203952), (2, 108601976), (4, 54300988), (7, 31029136), (8, 27150494), (14, 15514568), (16, 13575247), (28, 7757284), (56, 3878642), (97, 2239216), (112, 1939321), (194, 1119608), (388, 559804), (679, 319888), (776, 279902), (1358, 159944), (1552, 139951), (2716, 79972), (5432, 39986), (10864, 19993)]