21911552

素因数分解:

$2^{11}\times {\mathrm{13}}^1\times {\mathrm{823}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 47239920

約数和(自身を除く): 25328368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 823, 832, 1024, 1646, 1664, 2048, 3292, 3328, 6584, 6656, 10699, 13168, 13312, 21398, 26336, 26624, 42796, 52672, 85592, 105344, 171184, 210688, 342368, 421376, 684736, 842752, 1369472, 1685504, 2738944, 5477888, 10955776, 21911552]

約数ペア:

[(1, 21911552), (2, 10955776), (4, 5477888), (8, 2738944), (13, 1685504), (16, 1369472), (26, 842752), (32, 684736), (52, 421376), (64, 342368), (104, 210688), (128, 171184), (208, 105344), (256, 85592), (416, 52672), (512, 42796), (823, 26624), (832, 26336), (1024, 21398), (1646, 13312), (1664, 13168), (2048, 10699), (3292, 6656), (3328, 6584)]