18720774

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{20393}}^1$

素因数の和:20421

約数の個数: 32

約数和(自身を含む): 44051040

約数和(自身を除く): 25330266

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918, 20393, 40786, 61179, 122358, 183537, 346681, 367074, 550611, 693362, 1040043, 1101222, 2080086, 3120129, 6240258, 9360387, 18720774]

約数ペア:

[(1, 18720774), (2, 9360387), (3, 6240258), (6, 3120129), (9, 2080086), (17, 1101222), (18, 1040043), (27, 693362), (34, 550611), (51, 367074), (54, 346681), (102, 183537), (153, 122358), (306, 61179), (459, 40786), (918, 20393)]