215838

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{571}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 549120

約数和(自身を除く): 333282

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 571, 1142, 1713, 3426, 3997, 5139, 7994, 10278, 11991, 15417, 23982, 30834, 35973, 71946, 107919, 215838]

約数ペア:

[(1, 215838), (2, 107919), (3, 71946), (6, 35973), (7, 30834), (9, 23982), (14, 15417), (18, 11991), (21, 10278), (27, 7994), (42, 5139), (54, 3997), (63, 3426), (126, 1713), (189, 1142), (378, 571)]