18989964

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{2791}}^1$

素因数の和:2817

約数の個数: 72

約数和(自身を含む): 56912128

約数和(自身を除く): 37922164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 2791, 3402, 5582, 6804, 8373, 11164, 16746, 19537, 25119, 33492, 39074, 50238, 58611, 75357, 78148, 100476, 117222, 150714, 175833, 226071, 234444, 301428, 351666, 452142, 527499, 678213, 703332, 904284, 1054998, 1356426, 1582497, 2109996, 2712852, 3164994, 4747491, 6329988, 9494982, 18989964]

約数ペア:

[(1, 18989964), (2, 9494982), (3, 6329988), (4, 4747491), (6, 3164994), (7, 2712852), (9, 2109996), (12, 1582497), (14, 1356426), (18, 1054998), (21, 904284), (27, 703332), (28, 678213), (36, 527499), (42, 452142), (54, 351666), (63, 301428), (81, 234444), (84, 226071), (108, 175833), (126, 150714), (162, 117222), (189, 100476), (243, 78148), (252, 75357), (324, 58611), (378, 50238), (486, 39074), (567, 33492), (756, 25119), (972, 19537), (1134, 16746), (1701, 11164), (2268, 8373), (2791, 6804), (3402, 5582)]