19107328

素因数分解:

$2^9\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:642

約数の個数: 40

約数和(自身を含む): 38816712

約数和(自身を除く): 19709384

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 256, 268, 512, 536, 557, 1072, 1114, 2144, 2228, 4288, 4456, 8576, 8912, 17152, 17824, 34304, 35648, 37319, 71296, 74638, 142592, 149276, 285184, 298552, 597104, 1194208, 2388416, 4776832, 9553664, 19107328]

約数ペア:

[(1, 19107328), (2, 9553664), (4, 4776832), (8, 2388416), (16, 1194208), (32, 597104), (64, 298552), (67, 285184), (128, 149276), (134, 142592), (256, 74638), (268, 71296), (512, 37319), (536, 35648), (557, 34304), (1072, 17824), (1114, 17152), (2144, 8912), (2228, 8576), (4288, 4456)]