21826816

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 49742784

約数和(自身を除く): 27915968

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 128, 176, 184, 253, 256, 337, 352, 368, 506, 674, 704, 736, 1012, 1348, 1408, 1472, 2024, 2696, 2816, 2944, 3707, 4048, 5392, 5888, 7414, 7751, 8096, 10784, 14828, 15502, 16192, 21568, 29656, 31004, 32384, 43136, 59312, 62008, 64768, 85261, 86272, 118624, 124016, 170522, 237248, 248032, 341044, 474496, 496064, 682088, 948992, 992128, 1364176, 1984256, 2728352, 5456704, 10913408, 21826816]

約数ペア:

[(1, 21826816), (2, 10913408), (4, 5456704), (8, 2728352), (11, 1984256), (16, 1364176), (22, 992128), (23, 948992), (32, 682088), (44, 496064), (46, 474496), (64, 341044), (88, 248032), (92, 237248), (128, 170522), (176, 124016), (184, 118624), (253, 86272), (256, 85261), (337, 64768), (352, 62008), (368, 59312), (506, 43136), (674, 32384), (704, 31004), (736, 29656), (1012, 21568), (1348, 16192), (1408, 15502), (1472, 14828), (2024, 10784), (2696, 8096), (2816, 7751), (2944, 7414), (3707, 5888), (4048, 5392)]