19401798

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 41997312

約数和(自身を除く): 22595514

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 251, 502, 753, 991, 1506, 1982, 2973, 3263, 5946, 6526, 9789, 12883, 19578, 25766, 38649, 77298, 248741, 497482, 746223, 1492446, 3233633, 6467266, 9700899, 19401798]

約数ペア:

[(1, 19401798), (2, 9700899), (3, 6467266), (6, 3233633), (13, 1492446), (26, 746223), (39, 497482), (78, 248741), (251, 77298), (502, 38649), (753, 25766), (991, 19578), (1506, 12883), (1982, 9789), (2973, 6526), (3263, 5946)]