31487883

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1489}}^1$

素因数の和:1571

約数の個数: 32

約数和(自身を含む): 51494400

約数和(自身を除く): 20006517

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 1489, 3021, 4467, 7049, 10423, 21147, 28291, 31269, 78917, 84873, 198037, 236751, 552419, 594111, 1499423, 1657257, 4498269, 10495961, 31487883]

約数ペア:

[(1, 31487883), (3, 10495961), (7, 4498269), (19, 1657257), (21, 1499423), (53, 594111), (57, 552419), (133, 236751), (159, 198037), (371, 84873), (399, 78917), (1007, 31269), (1113, 28291), (1489, 21147), (3021, 10423), (4467, 7049)]