19458855

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 39836160

約数和(自身を除く): 20377305

約数列:

[1, 3, 5, 9, 13, 15, 29, 31, 37, 39, 45, 65, 87, 93, 111, 117, 145, 155, 185, 195, 261, 279, 333, 377, 403, 435, 465, 481, 555, 585, 899, 1073, 1131, 1147, 1209, 1305, 1395, 1443, 1665, 1885, 2015, 2405, 2697, 3219, 3393, 3441, 3627, 4329, 4495, 5365, 5655, 5735, 6045, 7215, 8091, 9657, 10323, 11687, 13485, 13949, 14911, 16095, 16965, 17205, 18135, 21645, 33263, 35061, 40455, 41847, 44733, 48285, 51615, 58435, 69745, 74555, 99789, 105183, 125541, 134199, 166315, 175305, 209235, 223665, 299367, 432419, 498945, 525915, 627705, 670995, 1297257, 1496835, 2162095, 3891771, 6486285, 19458855]

約数ペア:

[(1, 19458855), (3, 6486285), (5, 3891771), (9, 2162095), (13, 1496835), (15, 1297257), (29, 670995), (31, 627705), (37, 525915), (39, 498945), (45, 432419), (65, 299367), (87, 223665), (93, 209235), (111, 175305), (117, 166315), (145, 134199), (155, 125541), (185, 105183), (195, 99789), (261, 74555), (279, 69745), (333, 58435), (377, 51615), (403, 48285), (435, 44733), (465, 41847), (481, 40455), (555, 35061), (585, 33263), (899, 21645), (1073, 18135), (1131, 17205), (1147, 16965), (1209, 16095), (1305, 14911), (1395, 13949), (1443, 13485), (1665, 11687), (1885, 10323), (2015, 9657), (2405, 8091), (2697, 7215), (3219, 6045), (3393, 5735), (3441, 5655), (3627, 5365), (4329, 4495)]