21010048

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 45165600

約数和(自身を除く): 24155552

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 53, 64, 76, 106, 128, 152, 163, 212, 304, 326, 424, 608, 652, 848, 1007, 1216, 1304, 1696, 2014, 2432, 2608, 3097, 3392, 4028, 5216, 6194, 6784, 8056, 8639, 10432, 12388, 16112, 17278, 20864, 24776, 32224, 34556, 49552, 64448, 69112, 99104, 128896, 138224, 164141, 198208, 276448, 328282, 396416, 552896, 656564, 1105792, 1313128, 2626256, 5252512, 10505024, 21010048]

約数ペア:

[(1, 21010048), (2, 10505024), (4, 5252512), (8, 2626256), (16, 1313128), (19, 1105792), (32, 656564), (38, 552896), (53, 396416), (64, 328282), (76, 276448), (106, 198208), (128, 164141), (152, 138224), (163, 128896), (212, 99104), (304, 69112), (326, 64448), (424, 49552), (608, 34556), (652, 32224), (848, 24776), (1007, 20864), (1216, 17278), (1304, 16112), (1696, 12388), (2014, 10432), (2432, 8639), (2608, 8056), (3097, 6784), (3392, 6194), (4028, 5216)]