21585204

素因数分解:

$2^2\times 3^5\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 36203436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 81, 106, 108, 159, 162, 212, 243, 318, 324, 419, 477, 486, 636, 838, 954, 972, 1257, 1431, 1676, 1908, 2514, 2862, 3771, 4293, 5028, 5724, 7542, 8586, 11313, 12879, 15084, 17172, 22207, 22626, 25758, 33939, 44414, 45252, 51516, 66621, 67878, 88828, 101817, 133242, 135756, 199863, 203634, 266484, 399726, 407268, 599589, 799452, 1199178, 1798767, 2398356, 3597534, 5396301, 7195068, 10792602, 21585204]

約数ペア:

[(1, 21585204), (2, 10792602), (3, 7195068), (4, 5396301), (6, 3597534), (9, 2398356), (12, 1798767), (18, 1199178), (27, 799452), (36, 599589), (53, 407268), (54, 399726), (81, 266484), (106, 203634), (108, 199863), (159, 135756), (162, 133242), (212, 101817), (243, 88828), (318, 67878), (324, 66621), (419, 51516), (477, 45252), (486, 44414), (636, 33939), (838, 25758), (954, 22626), (972, 22207), (1257, 17172), (1431, 15084), (1676, 12879), (1908, 11313), (2514, 8586), (2862, 7542), (3771, 5724), (4293, 5028)]