19712909164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{518597}}^1$

素因数の和:518674

約数の個数: 48

約数和(自身を含む): 40251502368

約数和(自身を除く): 20538593204

約数列:

[1, 2, 4, 13, 17, 26, 34, 43, 52, 68, 86, 172, 221, 442, 559, 731, 884, 1118, 1462, 2236, 2924, 9503, 19006, 38012, 518597, 1037194, 2074388, 6741761, 8816149, 13483522, 17632298, 22299671, 26967044, 35264596, 44599342, 89198684, 114609937, 229219874, 289895723, 379094407, 458439748, 579791446, 758188814, 1159582892, 1516377628, 4928227291, 9856454582, 19712909164]

約数ペア:

[(1, 19712909164), (2, 9856454582), (4, 4928227291), (13, 1516377628), (17, 1159582892), (26, 758188814), (34, 579791446), (43, 458439748), (52, 379094407), (68, 289895723), (86, 229219874), (172, 114609937), (221, 89198684), (442, 44599342), (559, 35264596), (731, 26967044), (884, 22299671), (1118, 17632298), (1462, 13483522), (2236, 8816149), (2924, 6741761), (9503, 2074388), (19006, 1037194), (38012, 518597)]