19461645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2042

約数の個数: 48

約数和(自身を含む): 39816192

約数和(自身を除く): 20354547

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 1993, 3255, 5979, 9765, 9965, 13951, 17937, 29895, 41853, 61783, 69755, 89685, 125559, 185349, 209265, 308915, 432481, 556047, 627795, 926745, 1297443, 2162405, 2780235, 3892329, 6487215, 19461645]

約数ペア:

[(1, 19461645), (3, 6487215), (5, 3892329), (7, 2780235), (9, 2162405), (15, 1297443), (21, 926745), (31, 627795), (35, 556047), (45, 432481), (63, 308915), (93, 209265), (105, 185349), (155, 125559), (217, 89685), (279, 69755), (315, 61783), (465, 41853), (651, 29895), (1085, 17937), (1395, 13951), (1953, 9965), (1993, 9765), (3255, 5979)]