18821504

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{11311}}^1$

素因数の和:11338

約数の個数: 32

約数和(自身を含む): 40383840

約数和(自身を除く): 21562336

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 11311, 22622, 45244, 90488, 147043, 180976, 294086, 361952, 588172, 723904, 1176344, 1447808, 2352688, 4705376, 9410752, 18821504]

約数ペア:

[(1, 18821504), (2, 9410752), (4, 4705376), (8, 2352688), (13, 1447808), (16, 1176344), (26, 723904), (32, 588172), (52, 361952), (64, 294086), (104, 180976), (128, 147043), (208, 90488), (416, 45244), (832, 22622), (1664, 11311)]