21865440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{45553}}^1$

素因数の和:45571

約数の個数: 48

約数和(自身を含む): 68877648

約数和(自身を除く): 47012208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 45553, 91106, 136659, 182212, 227765, 273318, 364424, 455530, 546636, 683295, 728848, 911060, 1093272, 1366590, 1457696, 1822120, 2186544, 2733180, 3644240, 4373088, 5466360, 7288480, 10932720, 21865440]

約数ペア:

[(1, 21865440), (2, 10932720), (3, 7288480), (4, 5466360), (5, 4373088), (6, 3644240), (8, 2733180), (10, 2186544), (12, 1822120), (15, 1457696), (16, 1366590), (20, 1093272), (24, 911060), (30, 728848), (32, 683295), (40, 546636), (48, 455530), (60, 364424), (80, 273318), (96, 227765), (120, 182212), (160, 136659), (240, 91106), (480, 45553)]