21703904

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{797}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 45849888

約数和(自身を除く): 24145984

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 74, 92, 148, 184, 296, 368, 592, 736, 797, 851, 1184, 1594, 1702, 3188, 3404, 6376, 6808, 12752, 13616, 18331, 25504, 27232, 29489, 36662, 58978, 73324, 117956, 146648, 235912, 293296, 471824, 586592, 678247, 943648, 1356494, 2712988, 5425976, 10851952, 21703904]

約数ペア:

[(1, 21703904), (2, 10851952), (4, 5425976), (8, 2712988), (16, 1356494), (23, 943648), (32, 678247), (37, 586592), (46, 471824), (74, 293296), (92, 235912), (148, 146648), (184, 117956), (296, 73324), (368, 58978), (592, 36662), (736, 29489), (797, 27232), (851, 25504), (1184, 18331), (1594, 13616), (1702, 12752), (3188, 6808), (3404, 6376)]