19310291

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 26320896

約数和(自身を除く): 7010605

約数列:

[1, 7, 11, 13, 77, 91, 101, 143, 191, 707, 1001, 1111, 1313, 1337, 2101, 2483, 7777, 9191, 14443, 14707, 17381, 19291, 27313, 101101, 135037, 191191, 212201, 250783, 1485407, 1755481, 2758613, 19310291]

約数ペア:

[(1, 19310291), (7, 2758613), (11, 1755481), (13, 1485407), (77, 250783), (91, 212201), (101, 191191), (143, 135037), (191, 101101), (707, 27313), (1001, 19291), (1111, 17381), (1313, 14707), (1337, 14443), (2101, 9191), (2483, 7777)]