18185223

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 31518720

約数和(自身を除く): 13333497

約数列:

[1, 3, 7, 17, 19, 21, 49, 51, 57, 119, 133, 147, 323, 357, 383, 399, 833, 931, 969, 1149, 2261, 2499, 2681, 2793, 6511, 6783, 7277, 8043, 15827, 18767, 19533, 21831, 45577, 47481, 50939, 56301, 123709, 136731, 152817, 319039, 356573, 371127, 865963, 957117, 1069719, 2597889, 6061741, 18185223]

約数ペア:

[(1, 18185223), (3, 6061741), (7, 2597889), (17, 1069719), (19, 957117), (21, 865963), (49, 371127), (51, 356573), (57, 319039), (119, 152817), (133, 136731), (147, 123709), (323, 56301), (357, 50939), (383, 47481), (399, 45577), (833, 21831), (931, 19533), (969, 18767), (1149, 15827), (2261, 8043), (2499, 7277), (2681, 6783), (2793, 6511)]