21816558

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{52697}}^1$

素因数の和:52728

約数の個数: 24

約数和(自身を含む): 49325328

約数和(自身を除く): 27508770

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 52697, 105394, 158091, 316182, 474273, 948546, 1212031, 2424062, 3636093, 7272186, 10908279, 21816558]

約数ペア:

[(1, 21816558), (2, 10908279), (3, 7272186), (6, 3636093), (9, 2424062), (18, 1212031), (23, 948546), (46, 474273), (69, 316182), (138, 158091), (207, 105394), (414, 52697)]