217866368

素因数分解:

$2^7\times {\mathrm{83}}^1\times {\mathrm{20507}}^1$

素因数の和:20604

約数の個数: 32

約数和(自身を含む): 439281360

約数和(自身を除く): 221414992

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 332, 664, 1328, 2656, 5312, 10624, 20507, 41014, 82028, 164056, 328112, 656224, 1312448, 1702081, 2624896, 3404162, 6808324, 13616648, 27233296, 54466592, 108933184, 217866368]

約数ペア:

[(1, 217866368), (2, 108933184), (4, 54466592), (8, 27233296), (16, 13616648), (32, 6808324), (64, 3404162), (83, 2624896), (128, 1702081), (166, 1312448), (332, 656224), (664, 328112), (1328, 164056), (2656, 82028), (5312, 41014), (10624, 20507)]