18875745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1933}}^1$

素因数の和:1982

約数の個数: 48

約数和(自身を含む): 38618112

約数和(自身を除く): 19742367

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1933, 1953, 3255, 5799, 9665, 9765, 13531, 17397, 28995, 40593, 59923, 67655, 86985, 121779, 179769, 202965, 299615, 419461, 539307, 608895, 898845, 1258383, 2097305, 2696535, 3775149, 6291915, 18875745]

約数ペア:

[(1, 18875745), (3, 6291915), (5, 3775149), (7, 2696535), (9, 2097305), (15, 1258383), (21, 898845), (31, 608895), (35, 539307), (45, 419461), (63, 299615), (93, 202965), (105, 179769), (155, 121779), (217, 86985), (279, 67655), (315, 59923), (465, 40593), (651, 28995), (1085, 17397), (1395, 13531), (1933, 9765), (1953, 9665), (3255, 5799)]