19986603

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 33062400

約数和(自身を除く): 13075797

約数列:

[1, 3, 7, 13, 21, 39, 91, 179, 273, 409, 537, 1227, 1253, 2327, 2863, 3759, 5317, 6981, 8589, 15951, 16289, 37219, 48867, 73211, 111657, 219633, 512477, 951743, 1537431, 2855229, 6662201, 19986603]

約数ペア:

[(1, 19986603), (3, 6662201), (7, 2855229), (13, 1537431), (21, 951743), (39, 512477), (91, 219633), (179, 111657), (273, 73211), (409, 48867), (537, 37219), (1227, 16289), (1253, 15951), (2327, 8589), (2863, 6981), (3759, 5317)]