21279808

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:371

約数の個数: 56

約数和(自身を含む): 46597824

約数和(自身を除く): 25318016

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 167, 176, 181, 334, 352, 362, 668, 704, 724, 1336, 1448, 1837, 1991, 2672, 2896, 3674, 3982, 5344, 5792, 7348, 7964, 10688, 11584, 14696, 15928, 29392, 30227, 31856, 58784, 60454, 63712, 117568, 120908, 127424, 241816, 332497, 483632, 664994, 967264, 1329988, 1934528, 2659976, 5319952, 10639904, 21279808]

約数ペア:

[(1, 21279808), (2, 10639904), (4, 5319952), (8, 2659976), (11, 1934528), (16, 1329988), (22, 967264), (32, 664994), (44, 483632), (64, 332497), (88, 241816), (167, 127424), (176, 120908), (181, 117568), (334, 63712), (352, 60454), (362, 58784), (668, 31856), (704, 30227), (724, 29392), (1336, 15928), (1448, 14696), (1837, 11584), (1991, 10688), (2672, 7964), (2896, 7348), (3674, 5792), (3982, 5344)]