21044540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4159}}^1$

素因数の和:4202

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 29274820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4159, 5060, 8318, 16636, 20795, 41590, 45749, 83180, 91498, 95657, 182996, 191314, 228745, 382628, 457490, 478285, 914980, 956570, 1052227, 1913140, 2104454, 4208908, 5261135, 10522270, 21044540]

約数ペア:

[(1, 21044540), (2, 10522270), (4, 5261135), (5, 4208908), (10, 2104454), (11, 1913140), (20, 1052227), (22, 956570), (23, 914980), (44, 478285), (46, 457490), (55, 382628), (92, 228745), (110, 191314), (115, 182996), (220, 95657), (230, 91498), (253, 83180), (460, 45749), (506, 41590), (1012, 20795), (1265, 16636), (2530, 8318), (4159, 5060)]