21262169344

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{20543}}^1$

素因数の和:20883

約数の個数: 72

約数和(自身を含む): 45855194112

約数和(自身を除く): 24593024768

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 311, 416, 622, 832, 1244, 1664, 2488, 3328, 4043, 4976, 8086, 9952, 16172, 19904, 20543, 32344, 39808, 41086, 64688, 79616, 82172, 129376, 164344, 258752, 267059, 328688, 517504, 534118, 657376, 1035008, 1068236, 1314752, 2136472, 2629504, 4272944, 5259008, 6388873, 8545888, 12777746, 17091776, 25555492, 34183552, 51110984, 68367104, 83055349, 102221968, 166110698, 204443936, 332221396, 408887872, 664442792, 817775744, 1328885584, 1635551488, 2657771168, 5315542336, 10631084672, 21262169344]

約数ペア:

[(1, 21262169344), (2, 10631084672), (4, 5315542336), (8, 2657771168), (13, 1635551488), (16, 1328885584), (26, 817775744), (32, 664442792), (52, 408887872), (64, 332221396), (104, 204443936), (128, 166110698), (208, 102221968), (256, 83055349), (311, 68367104), (416, 51110984), (622, 34183552), (832, 25555492), (1244, 17091776), (1664, 12777746), (2488, 8545888), (3328, 6388873), (4043, 5259008), (4976, 4272944), (8086, 2629504), (9952, 2136472), (16172, 1314752), (19904, 1068236), (20543, 1035008), (32344, 657376), (39808, 534118), (41086, 517504), (64688, 328688), (79616, 267059), (82172, 258752), (129376, 164344)]