21786882020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{184291}}^1$

素因数の和:184580

約数の個数: 48

約数和(自身を含む): 47927714688

約数和(自身を除く): 26140832668

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 257, 460, 514, 1028, 1285, 2570, 5140, 5911, 11822, 23644, 29555, 59110, 118220, 184291, 368582, 737164, 921455, 1842910, 3685820, 4238693, 8477386, 16954772, 21193465, 42386930, 47362787, 84773860, 94725574, 189451148, 236813935, 473627870, 947255740, 1089344101, 2178688202, 4357376404, 5446720505, 10893441010, 21786882020]

約数ペア:

[(1, 21786882020), (2, 10893441010), (4, 5446720505), (5, 4357376404), (10, 2178688202), (20, 1089344101), (23, 947255740), (46, 473627870), (92, 236813935), (115, 189451148), (230, 94725574), (257, 84773860), (460, 47362787), (514, 42386930), (1028, 21193465), (1285, 16954772), (2570, 8477386), (5140, 4238693), (5911, 3685820), (11822, 1842910), (23644, 921455), (29555, 737164), (59110, 368582), (118220, 184291)]