21801962

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 41607720

約数和(自身を除く): 19805758

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 109, 157, 182, 218, 314, 637, 763, 1099, 1274, 1417, 1526, 2041, 2198, 2834, 4082, 5341, 7693, 9919, 10682, 14287, 15386, 17113, 19838, 28574, 34226, 69433, 100009, 119791, 138866, 200018, 222469, 239582, 444938, 838537, 1557283, 1677074, 3114566, 10900981, 21801962]

約数ペア:

[(1, 21801962), (2, 10900981), (7, 3114566), (13, 1677074), (14, 1557283), (26, 838537), (49, 444938), (91, 239582), (98, 222469), (109, 200018), (157, 138866), (182, 119791), (218, 100009), (314, 69433), (637, 34226), (763, 28574), (1099, 19838), (1274, 17113), (1417, 15386), (1526, 14287), (2041, 10682), (2198, 9919), (2834, 7693), (4082, 5341)]