21603015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68581}}^1$

素因数の和:68599

約数の個数: 24

約数和(自身を含む): 42795168

約数和(自身を除く): 21192153

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68581, 205743, 342905, 480067, 617229, 1028715, 1440201, 2400335, 3086145, 4320603, 7201005, 21603015]

約数ペア:

[(1, 21603015), (3, 7201005), (5, 4320603), (7, 3086145), (9, 2400335), (15, 1440201), (21, 1028715), (35, 617229), (45, 480067), (63, 342905), (105, 205743), (315, 68581)]