21702304

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{4013}}^1$

素因数の和:4049

約数の個数: 36

約数和(自身を含む): 46277406

約数和(自身を除く): 24575102

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 4013, 5408, 8026, 16052, 32104, 52169, 64208, 104338, 128416, 208676, 417352, 678197, 834704, 1356394, 1669408, 2712788, 5425576, 10851152, 21702304]

約数ペア:

[(1, 21702304), (2, 10851152), (4, 5425576), (8, 2712788), (13, 1669408), (16, 1356394), (26, 834704), (32, 678197), (52, 417352), (104, 208676), (169, 128416), (208, 104338), (338, 64208), (416, 52169), (676, 32104), (1352, 16052), (2704, 8026), (4013, 5408)]