19243184

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{269}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 39774240

約数和(自身を除く): 20531056

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 263, 269, 272, 526, 538, 1052, 1076, 2104, 2152, 4208, 4304, 4471, 4573, 8942, 9146, 17884, 18292, 35768, 36584, 70747, 71536, 73168, 141494, 282988, 565976, 1131952, 1202699, 2405398, 4810796, 9621592, 19243184]

約数ペア:

[(1, 19243184), (2, 9621592), (4, 4810796), (8, 2405398), (16, 1202699), (17, 1131952), (34, 565976), (68, 282988), (136, 141494), (263, 73168), (269, 71536), (272, 70747), (526, 36584), (538, 35768), (1052, 18292), (1076, 17884), (2104, 9146), (2152, 8942), (4208, 4573), (4304, 4471)]