18865936

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{271}}^1$

素因数の和:527

約数の個数: 40

約数和(自身を含む): 38787200

約数和(自身を除く): 19921264

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 229, 271, 304, 458, 542, 916, 1084, 1832, 2168, 3664, 4336, 4351, 5149, 8702, 10298, 17404, 20596, 34808, 41192, 62059, 69616, 82384, 124118, 248236, 496472, 992944, 1179121, 2358242, 4716484, 9432968, 18865936]

約数ペア:

[(1, 18865936), (2, 9432968), (4, 4716484), (8, 2358242), (16, 1179121), (19, 992944), (38, 496472), (76, 248236), (152, 124118), (229, 82384), (271, 69616), (304, 62059), (458, 41192), (542, 34808), (916, 20596), (1084, 17404), (1832, 10298), (2168, 8702), (3664, 5149), (4336, 4351)]