18919404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:599

約数の個数: 72

約数和(自身を含む): 55080480

約数和(自身を除く): 36161076

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 193, 252, 386, 389, 579, 772, 778, 1158, 1167, 1351, 1556, 1737, 2316, 2334, 2702, 2723, 3474, 3501, 4053, 4668, 5404, 5446, 6948, 7002, 8106, 8169, 10892, 12159, 14004, 16212, 16338, 24318, 24507, 32676, 48636, 49014, 75077, 98028, 150154, 225231, 300308, 450462, 525539, 675693, 900924, 1051078, 1351386, 1576617, 2102156, 2702772, 3153234, 4729851, 6306468, 9459702, 18919404]

約数ペア:

[(1, 18919404), (2, 9459702), (3, 6306468), (4, 4729851), (6, 3153234), (7, 2702772), (9, 2102156), (12, 1576617), (14, 1351386), (18, 1051078), (21, 900924), (28, 675693), (36, 525539), (42, 450462), (63, 300308), (84, 225231), (126, 150154), (193, 98028), (252, 75077), (386, 49014), (389, 48636), (579, 32676), (772, 24507), (778, 24318), (1158, 16338), (1167, 16212), (1351, 14004), (1556, 12159), (1737, 10892), (2316, 8169), (2334, 8106), (2702, 7002), (2723, 6948), (3474, 5446), (3501, 5404), (4053, 4668)]