21614440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17431}}^1$

素因数の和:17473

約数の個数: 32

約数和(自身を含む): 50204160

約数和(自身を除く): 28589720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17431, 34862, 69724, 87155, 139448, 174310, 348620, 540361, 697240, 1080722, 2161444, 2701805, 4322888, 5403610, 10807220, 21614440]

約数ペア:

[(1, 21614440), (2, 10807220), (4, 5403610), (5, 4322888), (8, 2701805), (10, 2161444), (20, 1080722), (31, 697240), (40, 540361), (62, 348620), (124, 174310), (155, 139448), (248, 87155), (310, 69724), (620, 34862), (1240, 17431)]