1989846

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:258

約数の個数: 40

約数和(自身を含む): 4547664

約数和(自身を除く): 2557818

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 173, 213, 346, 426, 519, 639, 1038, 1278, 1557, 1917, 3114, 3834, 4671, 5751, 9342, 11502, 12283, 14013, 24566, 28026, 36849, 73698, 110547, 221094, 331641, 663282, 994923, 1989846]

約数ペア:

[(1, 1989846), (2, 994923), (3, 663282), (6, 331641), (9, 221094), (18, 110547), (27, 73698), (54, 36849), (71, 28026), (81, 24566), (142, 14013), (162, 12283), (173, 11502), (213, 9342), (346, 5751), (426, 4671), (519, 3834), (639, 3114), (1038, 1917), (1278, 1557)]