18615808

素因数分解:

$2^9\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:474

約数の個数: 40

約数和(自身を含む): 37662768

約数和(自身を除く): 19046960

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 256, 353, 412, 512, 706, 824, 1412, 1648, 2824, 3296, 5648, 6592, 11296, 13184, 22592, 26368, 36359, 45184, 52736, 72718, 90368, 145436, 180736, 290872, 581744, 1163488, 2326976, 4653952, 9307904, 18615808]

約数ペア:

[(1, 18615808), (2, 9307904), (4, 4653952), (8, 2326976), (16, 1163488), (32, 581744), (64, 290872), (103, 180736), (128, 145436), (206, 90368), (256, 72718), (353, 52736), (412, 45184), (512, 36359), (706, 26368), (824, 22592), (1412, 13184), (1648, 11296), (2824, 6592), (3296, 5648)]