19993313872

素因数分解:

$2^4\times 7^1\times {\mathrm{409}}^1\times {\mathrm{436459}}^1$

素因数の和:436883

約数の個数: 40

約数和(自身を含む): 44379252800

約数和(自身を除く): 24385938928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 409, 818, 1636, 2863, 3272, 5726, 6544, 11452, 22904, 45808, 436459, 872918, 1745836, 3055213, 3491672, 6110426, 6983344, 12220852, 24441704, 48883408, 178511731, 357023462, 714046924, 1249582117, 1428093848, 2499164234, 2856187696, 4998328468, 9996656936, 19993313872]

約数ペア:

[(1, 19993313872), (2, 9996656936), (4, 4998328468), (7, 2856187696), (8, 2499164234), (14, 1428093848), (16, 1249582117), (28, 714046924), (56, 357023462), (112, 178511731), (409, 48883408), (818, 24441704), (1636, 12220852), (2863, 6983344), (3272, 6110426), (5726, 3491672), (6544, 3055213), (11452, 1745836), (22904, 872918), (45808, 436459)]