20941518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{929}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 47965680

約数和(自身を除く): 27024162

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 289, 442, 578, 663, 867, 929, 1326, 1734, 1858, 2787, 3757, 5574, 7514, 11271, 12077, 15793, 22542, 24154, 31586, 36231, 47379, 72462, 94758, 205309, 268481, 410618, 536962, 615927, 805443, 1231854, 1610886, 3490253, 6980506, 10470759, 20941518]

約数ペア:

[(1, 20941518), (2, 10470759), (3, 6980506), (6, 3490253), (13, 1610886), (17, 1231854), (26, 805443), (34, 615927), (39, 536962), (51, 410618), (78, 268481), (102, 205309), (221, 94758), (289, 72462), (442, 47379), (578, 36231), (663, 31586), (867, 24154), (929, 22542), (1326, 15793), (1734, 12077), (1858, 11271), (2787, 7514), (3757, 5574)]