28121538

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:590

約数の個数: 32

約数和(自身を含む): 57480192

約数和(自身を除く): 29358654

約数列:

[1, 2, 3, 6, 71, 142, 213, 251, 263, 426, 502, 526, 753, 789, 1506, 1578, 17821, 18673, 35642, 37346, 53463, 56019, 66013, 106926, 112038, 132026, 198039, 396078, 4686923, 9373846, 14060769, 28121538]

約数ペア:

[(1, 28121538), (2, 14060769), (3, 9373846), (6, 4686923), (71, 396078), (142, 198039), (213, 132026), (251, 112038), (263, 106926), (426, 66013), (502, 56019), (526, 53463), (753, 37346), (789, 35642), (1506, 18673), (1578, 17821)]