18858321

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{233}}^1$

素因数の和:302

約数の個数: 36

約数和(自身を含む): 30280068

約数和(自身を除く): 11421747

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 233, 391, 529, 699, 1173, 1587, 2097, 3519, 3961, 4761, 5359, 8993, 11883, 16077, 26979, 35649, 48231, 80937, 91103, 123257, 273309, 369771, 819927, 1109313, 2095369, 6286107, 18858321]

約数ペア:

[(1, 18858321), (3, 6286107), (9, 2095369), (17, 1109313), (23, 819927), (51, 369771), (69, 273309), (153, 123257), (207, 91103), (233, 80937), (391, 48231), (529, 35649), (699, 26979), (1173, 16077), (1587, 11883), (2097, 8993), (3519, 5359), (3961, 4761)]