257163039

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{46919}}^1$

素因数の和:46964

約数の個数: 32

約数和(自身を含む): 450432000

約数和(自身を除く): 193268961

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 5481, 46919, 140757, 328433, 422271, 985299, 1266813, 1360651, 2955897, 4081953, 8867691, 9524557, 12245859, 28573671, 36737577, 85721013, 257163039]

約数ペア:

[(1, 257163039), (3, 85721013), (7, 36737577), (9, 28573671), (21, 12245859), (27, 9524557), (29, 8867691), (63, 4081953), (87, 2955897), (189, 1360651), (203, 1266813), (261, 985299), (609, 422271), (783, 328433), (1827, 140757), (5481, 46919)]