420333561

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 657072000

約数和(自身を除く): 236738439

約数列:

[1, 3, 9, 19, 57, 71, 89, 171, 213, 267, 389, 639, 801, 1167, 1349, 1691, 3501, 4047, 5073, 6319, 7391, 12141, 15219, 18957, 22173, 27619, 34621, 56871, 66519, 82857, 103863, 120061, 248571, 311589, 360183, 524761, 657799, 1080549, 1574283, 1973397, 2458091, 4722849, 5920191, 7374273, 22122819, 46703729, 140111187, 420333561]

約数ペア:

[(1, 420333561), (3, 140111187), (9, 46703729), (19, 22122819), (57, 7374273), (71, 5920191), (89, 4722849), (171, 2458091), (213, 1973397), (267, 1574283), (389, 1080549), (639, 657799), (801, 524761), (1167, 360183), (1349, 311589), (1691, 248571), (3501, 120061), (4047, 103863), (5073, 82857), (6319, 66519), (7391, 56871), (12141, 34621), (15219, 27619), (18957, 22173)]