20429955

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1697

約数の個数: 64

約数和(自身を含む): 44728320

約数和(自身を除く): 24298365

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1365, 1663, 1755, 2457, 4095, 4989, 8315, 11641, 12285, 14967, 21619, 24945, 34923, 44901, 58205, 64857, 74835, 104769, 108095, 151333, 174615, 194571, 224505, 314307, 324285, 453999, 523845, 583713, 756665, 972855, 1361997, 1571535, 2269995, 2918565, 4085991, 6809985, 20429955]

約数ペア:

[(1, 20429955), (3, 6809985), (5, 4085991), (7, 2918565), (9, 2269995), (13, 1571535), (15, 1361997), (21, 972855), (27, 756665), (35, 583713), (39, 523845), (45, 453999), (63, 324285), (65, 314307), (91, 224505), (105, 194571), (117, 174615), (135, 151333), (189, 108095), (195, 104769), (273, 74835), (315, 64857), (351, 58205), (455, 44901), (585, 34923), (819, 24945), (945, 21619), (1365, 14967), (1663, 12285), (1755, 11641), (2457, 8315), (4095, 4989)]