19789864

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 38167200

約数和(自身を除く): 18377336

約数列:

[1, 2, 4, 8, 61, 107, 122, 214, 244, 379, 428, 488, 758, 856, 1516, 3032, 6527, 13054, 23119, 26108, 40553, 46238, 52216, 81106, 92476, 162212, 184952, 324424, 2473733, 4947466, 9894932, 19789864]

約数ペア:

[(1, 19789864), (2, 9894932), (4, 4947466), (8, 2473733), (61, 324424), (107, 184952), (122, 162212), (214, 92476), (244, 81106), (379, 52216), (428, 46238), (488, 40553), (758, 26108), (856, 23119), (1516, 13054), (3032, 6527)]