19538727

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 29331456

約数和(自身を除く): 9792729

約数列:

[1, 3, 13, 39, 43, 61, 129, 183, 191, 559, 573, 793, 1677, 2379, 2483, 2623, 7449, 7869, 8213, 11651, 24639, 34099, 34953, 102297, 106769, 151463, 320307, 454389, 500993, 1502979, 6512909, 19538727]

約数ペア:

[(1, 19538727), (3, 6512909), (13, 1502979), (39, 500993), (43, 454389), (61, 320307), (129, 151463), (183, 106769), (191, 102297), (559, 34953), (573, 34099), (793, 24639), (1677, 11651), (2379, 8213), (2483, 7869), (2623, 7449)]