21706388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22202092

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 89, 92, 178, 241, 253, 356, 482, 506, 964, 979, 1012, 1958, 2047, 2651, 3916, 4094, 5302, 5543, 8188, 10604, 11086, 21449, 22172, 22517, 42898, 45034, 60973, 85796, 90068, 121946, 235939, 243892, 471878, 493327, 943756, 986654, 1973308, 5426597, 10853194, 21706388]

約数ペア:

[(1, 21706388), (2, 10853194), (4, 5426597), (11, 1973308), (22, 986654), (23, 943756), (44, 493327), (46, 471878), (89, 243892), (92, 235939), (178, 121946), (241, 90068), (253, 85796), (356, 60973), (482, 45034), (506, 42898), (964, 22517), (979, 22172), (1012, 21449), (1958, 11086), (2047, 10604), (2651, 8188), (3916, 5543), (4094, 5302)]