18489996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 53813760

約数和(自身を除く): 35323764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 239, 252, 307, 478, 614, 717, 921, 956, 1228, 1434, 1673, 1842, 2149, 2151, 2763, 2868, 3346, 3684, 4298, 4302, 5019, 5526, 6447, 6692, 8596, 8604, 10038, 11052, 12894, 15057, 19341, 20076, 25788, 30114, 38682, 60228, 73373, 77364, 146746, 220119, 293492, 440238, 513611, 660357, 880476, 1027222, 1320714, 1540833, 2054444, 2641428, 3081666, 4622499, 6163332, 9244998, 18489996]

約数ペア:

[(1, 18489996), (2, 9244998), (3, 6163332), (4, 4622499), (6, 3081666), (7, 2641428), (9, 2054444), (12, 1540833), (14, 1320714), (18, 1027222), (21, 880476), (28, 660357), (36, 513611), (42, 440238), (63, 293492), (84, 220119), (126, 146746), (239, 77364), (252, 73373), (307, 60228), (478, 38682), (614, 30114), (717, 25788), (921, 20076), (956, 19341), (1228, 15057), (1434, 12894), (1673, 11052), (1842, 10038), (2149, 8604), (2151, 8596), (2763, 6692), (2868, 6447), (3346, 5526), (3684, 5019), (4298, 4302)]