18979398

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:493

約数の個数: 48

約数和(自身を含む): 43074720

約数和(自身を除く): 24095322

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 103, 174, 206, 261, 309, 353, 522, 618, 706, 927, 1059, 1854, 2118, 2987, 3177, 5974, 6354, 8961, 10237, 17922, 20474, 26883, 30711, 36359, 53766, 61422, 72718, 92133, 109077, 184266, 218154, 327231, 654462, 1054411, 2108822, 3163233, 6326466, 9489699, 18979398]

約数ペア:

[(1, 18979398), (2, 9489699), (3, 6326466), (6, 3163233), (9, 2108822), (18, 1054411), (29, 654462), (58, 327231), (87, 218154), (103, 184266), (174, 109077), (206, 92133), (261, 72718), (309, 61422), (353, 53766), (522, 36359), (618, 30711), (706, 26883), (927, 20474), (1059, 17922), (1854, 10237), (2118, 8961), (2987, 6354), (3177, 5974)]