201915681

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{859}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 312076800

約数和(自身を除く): 110161119

約数列:

[1, 3, 11, 17, 33, 51, 187, 419, 561, 859, 1257, 2577, 4609, 7123, 9449, 13827, 14603, 21369, 28347, 43809, 78353, 160633, 235059, 359921, 481899, 1079763, 3959131, 6118657, 11877393, 18355971, 67305227, 201915681]

約数ペア:

[(1, 201915681), (3, 67305227), (11, 18355971), (17, 11877393), (33, 6118657), (51, 3959131), (187, 1079763), (419, 481899), (561, 359921), (859, 235059), (1257, 160633), (2577, 78353), (4609, 43809), (7123, 28347), (9449, 21369), (13827, 14603)]