21645568

素因数分解:

$2^8\times 7^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 50625792

約数和(自身を除く): 28980224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 256, 257, 329, 376, 448, 514, 658, 752, 896, 1028, 1316, 1504, 1792, 1799, 2056, 2632, 3008, 3598, 4112, 5264, 6016, 7196, 8224, 10528, 12032, 12079, 14392, 16448, 21056, 24158, 28784, 32896, 42112, 48316, 57568, 65792, 84224, 84553, 96632, 115136, 169106, 193264, 230272, 338212, 386528, 460544, 676424, 773056, 1352848, 1546112, 2705696, 3092224, 5411392, 10822784, 21645568]

約数ペア:

[(1, 21645568), (2, 10822784), (4, 5411392), (7, 3092224), (8, 2705696), (14, 1546112), (16, 1352848), (28, 773056), (32, 676424), (47, 460544), (56, 386528), (64, 338212), (94, 230272), (112, 193264), (128, 169106), (188, 115136), (224, 96632), (256, 84553), (257, 84224), (329, 65792), (376, 57568), (448, 48316), (514, 42112), (658, 32896), (752, 28784), (896, 24158), (1028, 21056), (1316, 16448), (1504, 14392), (1792, 12079), (1799, 12032), (2056, 10528), (2632, 8224), (3008, 7196), (3598, 6016), (4112, 5264)]