21842755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 30855168

約数和(自身を除く): 9012413

約数列:

[1, 5, 11, 23, 31, 55, 115, 155, 253, 341, 557, 713, 1265, 1705, 2785, 3565, 6127, 7843, 12811, 17267, 30635, 39215, 64055, 86335, 140921, 189937, 397141, 704605, 949685, 1985705, 4368551, 21842755]

約数ペア:

[(1, 21842755), (5, 4368551), (11, 1985705), (23, 949685), (31, 704605), (55, 397141), (115, 189937), (155, 140921), (253, 86335), (341, 64055), (557, 39215), (713, 30635), (1265, 17267), (1705, 12811), (2785, 7843), (3565, 6127)]