21963755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 8373013

約数列:

[1, 5, 11, 37, 43, 55, 185, 215, 251, 407, 473, 1255, 1591, 2035, 2365, 2761, 7955, 9287, 10793, 13805, 17501, 46435, 53965, 87505, 102157, 118723, 399341, 510785, 593615, 1996705, 4392751, 21963755]

約数ペア:

[(1, 21963755), (5, 4392751), (11, 1996705), (37, 593615), (43, 510785), (55, 399341), (185, 118723), (215, 102157), (251, 87505), (407, 53965), (473, 46435), (1255, 17501), (1591, 13805), (2035, 10793), (2365, 9287), (2761, 7955)]