18764824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2693}}^1$

素因数の和:2779

約数の個数: 32

約数和(自身を含む): 38470320

約数和(自身を除く): 19705496

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 2693, 3484, 5386, 6968, 10772, 21544, 35009, 70018, 140036, 180431, 280072, 360862, 721724, 1443448, 2345603, 4691206, 9382412, 18764824]

約数ペア:

[(1, 18764824), (2, 9382412), (4, 4691206), (8, 2345603), (13, 1443448), (26, 721724), (52, 360862), (67, 280072), (104, 180431), (134, 140036), (268, 70018), (536, 35009), (871, 21544), (1742, 10772), (2693, 6968), (3484, 5386)]