19416215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 28976640

約数和(自身を除く): 9560425

約数列:

[1, 5, 7, 13, 35, 65, 91, 139, 307, 455, 695, 973, 1535, 1807, 2149, 3991, 4865, 9035, 10745, 12649, 19955, 27937, 42673, 63245, 139685, 213365, 298711, 554749, 1493555, 2773745, 3883243, 19416215]

約数ペア:

[(1, 19416215), (5, 3883243), (7, 2773745), (13, 1493555), (35, 554749), (65, 298711), (91, 213365), (139, 139685), (307, 63245), (455, 42673), (695, 27937), (973, 19955), (1535, 12649), (1807, 10745), (2149, 9035), (3991, 4865)]