21725216

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 23090464

約数列:

[1, 2, 4, 8, 16, 32, 37, 59, 74, 118, 148, 236, 296, 311, 472, 592, 622, 944, 1184, 1244, 1888, 2183, 2488, 4366, 4976, 8732, 9952, 11507, 17464, 18349, 23014, 34928, 36698, 46028, 69856, 73396, 92056, 146792, 184112, 293584, 368224, 587168, 678913, 1357826, 2715652, 5431304, 10862608, 21725216]

約数ペア:

[(1, 21725216), (2, 10862608), (4, 5431304), (8, 2715652), (16, 1357826), (32, 678913), (37, 587168), (59, 368224), (74, 293584), (118, 184112), (148, 146792), (236, 92056), (296, 73396), (311, 69856), (472, 46028), (592, 36698), (622, 34928), (944, 23014), (1184, 18349), (1244, 17464), (1888, 11507), (2183, 9952), (2488, 8732), (4366, 4976)]