21696928

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1163}}^1$

素因数の和:1237

約数の個数: 48

約数和(自身を含む): 47519136

約数和(自身を除く): 25822208

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 88, 106, 176, 212, 352, 424, 583, 848, 1163, 1166, 1696, 2326, 2332, 4652, 4664, 9304, 9328, 12793, 18608, 18656, 25586, 37216, 51172, 61639, 102344, 123278, 204688, 246556, 409376, 493112, 678029, 986224, 1356058, 1972448, 2712116, 5424232, 10848464, 21696928]

約数ペア:

[(1, 21696928), (2, 10848464), (4, 5424232), (8, 2712116), (11, 1972448), (16, 1356058), (22, 986224), (32, 678029), (44, 493112), (53, 409376), (88, 246556), (106, 204688), (176, 123278), (212, 102344), (352, 61639), (424, 51172), (583, 37216), (848, 25586), (1163, 18656), (1166, 18608), (1696, 12793), (2326, 9328), (2332, 9304), (4652, 4664)]