20214128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2671}}^1$

素因数の和:2733

約数の個数: 40

約数和(自身を含む): 43735296

約数和(自身を除く): 23521168

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2671, 3784, 5342, 7568, 10684, 21368, 29381, 42736, 58762, 114853, 117524, 229706, 235048, 459412, 470096, 918824, 1263383, 1837648, 2526766, 5053532, 10107064, 20214128]

約数ペア:

[(1, 20214128), (2, 10107064), (4, 5053532), (8, 2526766), (11, 1837648), (16, 1263383), (22, 918824), (43, 470096), (44, 459412), (86, 235048), (88, 229706), (172, 117524), (176, 114853), (344, 58762), (473, 42736), (688, 29381), (946, 21368), (1892, 10684), (2671, 7568), (3784, 5342)]