19418868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{293}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 56504448

約数和(自身を除く): 37085580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 263, 293, 526, 586, 789, 879, 1052, 1172, 1578, 1758, 1841, 2051, 2367, 2637, 3156, 3516, 3682, 4102, 4734, 5274, 5523, 6153, 7364, 8204, 9468, 10548, 11046, 12306, 16569, 18459, 22092, 24612, 33138, 36918, 66276, 73836, 77059, 154118, 231177, 308236, 462354, 539413, 693531, 924708, 1078826, 1387062, 1618239, 2157652, 2774124, 3236478, 4854717, 6472956, 9709434, 19418868]

約数ペア:

[(1, 19418868), (2, 9709434), (3, 6472956), (4, 4854717), (6, 3236478), (7, 2774124), (9, 2157652), (12, 1618239), (14, 1387062), (18, 1078826), (21, 924708), (28, 693531), (36, 539413), (42, 462354), (63, 308236), (84, 231177), (126, 154118), (252, 77059), (263, 73836), (293, 66276), (526, 36918), (586, 33138), (789, 24612), (879, 22092), (1052, 18459), (1172, 16569), (1578, 12306), (1758, 11046), (1841, 10548), (2051, 9468), (2367, 8204), (2637, 7364), (3156, 6153), (3516, 5523), (3682, 5274), (4102, 4734)]