18912976

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2243}}^1$

素因数の和:2299

約数の個数: 40

約数和(自身を含む): 40068864

約数和(自身を除く): 21155888

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 496, 527, 1054, 2108, 2243, 4216, 4486, 8432, 8972, 17944, 35888, 38131, 69533, 76262, 139066, 152524, 278132, 305048, 556264, 610096, 1112528, 1182061, 2364122, 4728244, 9456488, 18912976]

約数ペア:

[(1, 18912976), (2, 9456488), (4, 4728244), (8, 2364122), (16, 1182061), (17, 1112528), (31, 610096), (34, 556264), (62, 305048), (68, 278132), (124, 152524), (136, 139066), (248, 76262), (272, 69533), (496, 38131), (527, 35888), (1054, 17944), (2108, 8972), (2243, 8432), (4216, 4486)]